<?php
/**
 * MultibyteTest file
 *
 * CakePHP(tm) Tests <https://book.cakephp.org/2.0/en/development/testing.html>
 * Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
 *
 * Licensed under The MIT License
 * For full copyright and license information, please see the LICENSE.txt
 * Redistributions of files must retain the above copyright notice
 *
 * @copyright     Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
 * @link          https://book.cakephp.org/2.0/en/development/testing.html CakePHP(tm) Tests
 * @package       Cake.Test.Case.I18n
 * @since         CakePHP(tm) v 1.2.0.6833
 * @license       https://opensource.org/licenses/mit-license.php MIT License
 */

App::uses('Multibyte', 'I18n');

/**
 * MultibyteTest class
 *
 * @package       Cake.Test.Case.I18n
 */
class MultibyteTest extends CakeTestCase {

/**
 * testUtf8 method
 *
 * @return void
 */
	public function testUtf8() {
		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$result = Multibyte::utf8($string);
		$expected = array(33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57,
								58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82,
								83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105,
								106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126);
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$result = Multibyte::utf8($string);
		$expected = array(161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181,
								182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200);
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$result = Multibyte::utf8($string);
		$expected = array(201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221,
								222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242,
								243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255, 256, 257, 258, 259, 260, 261, 262, 263,
								264, 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284,
								285, 286, 287, 288, 289, 290, 291, 292, 293, 294, 295, 296, 297, 298, 299, 300);
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$result = Multibyte::utf8($string);
		$expected = array(301, 302, 303, 304, 305, 306, 307, 308, 309, 310, 311, 312, 313, 314, 315, 316, 317, 318, 319, 320, 321,
								322, 323, 324, 325, 326, 327, 328, 329, 330, 331, 332, 333, 334, 335, 336, 337, 338, 339, 340, 341, 342,
								343, 344, 345, 346, 347, 348, 349, 350, 351, 352, 353, 354, 355, 356, 357, 358, 359, 360, 361, 362, 363,
								364, 365, 366, 367, 368, 369, 370, 371, 372, 373, 374, 375, 376, 377, 378, 379, 380, 381, 382, 383, 384,
								385, 386, 387, 388, 389, 390, 391, 392, 393, 394, 395, 396, 397, 398, 399, 400);
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$result = Multibyte::utf8($string);
		$expected = array(401, 402, 403, 404, 405, 406, 407, 408, 409, 410, 411, 412, 413, 414, 415, 416, 417, 418, 419, 420, 421,
								422, 423, 424, 425, 426, 427, 428, 429, 430, 431, 432, 433, 434, 435, 436, 437, 438, 439, 440, 441, 442,
								443, 444, 445, 446, 447, 448, 449, 450, 451, 452, 453, 454, 455, 456, 457, 458, 459, 460, 461, 462, 463,
								464, 465, 466, 467, 468, 469, 470, 471, 472, 473, 474, 475, 476, 477, 478, 479, 480, 481, 482, 483, 484,
								485, 486, 487, 488, 489, 490, 491, 492, 493, 494, 495, 496, 497, 498, 499, 500);
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$result = Multibyte::utf8($string);
		$expected = array(601, 602, 603, 604, 605, 606, 607, 608, 609, 610, 611, 612, 613, 614, 615, 616, 617, 618, 619, 620, 621,
								622, 623, 624, 625, 626, 627, 628, 629, 630, 631, 632, 633, 634, 635, 636, 637, 638, 639, 640, 641, 642,
								643, 644, 645, 646, 647, 648, 649, 650, 651, 652, 653, 654, 655, 656, 657, 658, 659, 660, 661, 662, 663,
								664, 665, 666, 667, 668, 669, 670, 671, 672, 673, 674, 675, 676, 677, 678, 679, 680, 681, 682, 683, 684,
								685, 686, 687, 688, 689, 690, 691, 692, 693, 694, 695, 696, 697, 698, 699, 700);
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$result = Multibyte::utf8($string);
		$expected = array(1024, 1025, 1026, 1027, 1028, 1029, 1030, 1031, 1032, 1033, 1034, 1035, 1036, 1037, 1038, 1039, 1040, 1041,
								1042, 1043, 1044, 1045, 1046, 1047, 1048, 1049, 1050, 1051);
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$result = Multibyte::utf8($string);
		$expected = array(1052, 1053, 1054, 1055, 1056, 1057, 1058, 1059, 1060, 1061, 1062, 1063, 1064, 1065, 1066, 1067, 1068, 1069,
								1070, 1071, 1072, 1073, 1074, 1075, 1076, 1077, 1078, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086, 1087,
								1088, 1089, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098, 1099, 1100);
		$this->assertEquals($expected, $result);

		$string = 'չպջռսվտ';
		$result = Multibyte::utf8($string);
		$expected = array(1401, 1402, 1403, 1404, 1405, 1406, 1407);
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$result = Multibyte::utf8($string);
		$expected = array(1601, 1602, 1603, 1604, 1605, 1606, 1607, 1608, 1609, 1610, 1611, 1612, 1613, 1614, 1615);
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$result = Multibyte::utf8($string);
		$expected = array(10032, 10033, 10034, 10035, 10036, 10037, 10038, 10039, 10040, 10041, 10042, 10043, 10044,
								10045, 10046, 10047, 10048, 10049, 10050, 10051, 10052, 10053, 10054, 10055, 10056, 10057,
								10058, 10059, 10060, 10061, 10062, 10063, 10064, 10065, 10066, 10067, 10068, 10069, 10070,
								10071, 10072, 10073, 10074, 10075, 10076, 10077, 10078);
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$result = Multibyte::utf8($string);
		$expected = array(11904, 11905, 11906, 11907, 11908, 11909, 11910, 11911, 11912, 11913, 11914, 11915, 11916, 11917, 11918, 11919,
								11920, 11921, 11922, 11923, 11924, 11925, 11926, 11927, 11928, 11929, 11931, 11932, 11933, 11934, 11935, 11936,
								11937, 11938, 11939, 11940, 11941, 11942, 11943, 11944, 11945, 11946, 11947, 11948, 11949, 11950, 11951, 11952,
								11953, 11954, 11955, 11956, 11957, 11958, 11959, 11960, 11961, 11962, 11963, 11964, 11965, 11966, 11967, 11968,
								11969, 11970, 11971, 11972, 11973, 11974, 11975, 11976, 11977, 11978, 11979, 11980, 11981, 11982, 11983, 11984,
								11985, 11986, 11987, 11988, 11989, 11990, 11991, 11992, 11993, 11994, 11995, 11996, 11997, 11998, 11999, 12000);
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$result = Multibyte::utf8($string);
		$expected = array(12101, 12102, 12103, 12104, 12105, 12106, 12107, 12108, 12109, 12110, 12111, 12112, 12113, 12114, 12115, 12116,
								12117, 12118, 12119, 12120, 12121, 12122, 12123, 12124, 12125, 12126, 12127, 12128, 12129, 12130, 12131, 12132,
								12133, 12134, 12135, 12136, 12137, 12138, 12139, 12140, 12141, 12142, 12143, 12144, 12145, 12146, 12147, 12148,
								12149, 12150, 12151, 12152, 12153, 12154, 12155, 12156, 12157, 12158, 12159);
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$result = Multibyte::utf8($string);
		$expected = array(45601, 45602, 45603, 45604, 45605, 45606, 45607, 45608, 45609, 45610, 45611, 45612, 45613, 45614, 45615, 45616,
								45617, 45618, 45619, 45620, 45621, 45622, 45623, 45624, 45625, 45626, 45627, 45628, 45629, 45630, 45631, 45632,
								45633, 45634, 45635, 45636, 45637, 45638, 45639, 45640, 45641, 45642, 45643, 45644, 45645, 45646, 45647, 45648,
								45649, 45650, 45651, 45652, 45653, 45654, 45655, 45656, 45657, 45658, 45659, 45660, 45661, 45662, 45663, 45664,
								45665, 45666, 45667, 45668, 45669, 45670, 45671, 45672, 45673, 45674, 45675, 45676, 45677, 45678, 45679, 45680,
								45681, 45682, 45683, 45684, 45685, 45686, 45687, 45688, 45689, 45690, 45691, 45692, 45693, 45694, 45695, 45696,
								45697, 45698, 45699, 45700);
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$result = Multibyte::utf8($string);
		$expected = array(65136, 65137, 65138, 65139, 65140, 65141, 65142, 65143, 65144, 65145, 65146, 65147, 65148, 65149, 65150, 65151,
								65152, 65153, 65154, 65155, 65156, 65157, 65158, 65159, 65160, 65161, 65162, 65163, 65164, 65165, 65166, 65167,
								65168, 65169, 65170, 65171, 65172, 65173, 65174, 65175, 65176, 65177, 65178, 65179, 65180, 65181, 65182, 65183,
								65184, 65185, 65186, 65187, 65188, 65189, 65190, 65191, 65192, 65193, 65194, 65195, 65196, 65197, 65198, 65199,
								65200);
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$result = Multibyte::utf8($string);
		$expected = array(65201, 65202, 65203, 65204, 65205, 65206, 65207, 65208, 65209, 65210, 65211, 65212, 65213, 65214, 65215, 65216,
								65217, 65218, 65219, 65220, 65221, 65222, 65223, 65224, 65225, 65226, 65227, 65228, 65229, 65230, 65231, 65232,
								65233, 65234, 65235, 65236, 65237, 65238, 65239, 65240, 65241, 65242, 65243, 65244, 65245, 65246, 65247, 65248,
								65249, 65250, 65251, 65252, 65253, 65254, 65255, 65256, 65257, 65258, 65259, 65260, 65261, 65262, 65263, 65264,
								65265, 65266, 65267, 65268, 65269, 65270, 65271, 65272, 65273, 65274, 65275, 65276);
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$result = Multibyte::utf8($string);
		$expected = array(65345, 65346, 65347, 65348, 65349, 65350, 65351, 65352, 65353, 65354, 65355, 65356, 65357, 65358, 65359, 65360,
								65361, 65362, 65363, 65364, 65365, 65366, 65367, 65368, 65369, 65370);
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$result = Multibyte::utf8($string);
		$expected = array(65377, 65378, 65379, 65380, 65381, 65382, 65383, 65384, 65385, 65386, 65387, 65388, 65389, 65390, 65391, 65392,
								65393, 65394, 65395, 65396, 65397, 65398, 65399, 65400);
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$result = Multibyte::utf8($string);
		$expected = array(65401, 65402, 65403, 65404, 65405, 65406, 65407, 65408, 65409, 65410, 65411, 65412, 65413, 65414, 65415, 65416,
								65417, 65418, 65419, 65420, 65421, 65422, 65423, 65424, 65425, 65426, 65427, 65428, 65429, 65430, 65431, 65432,
								65433, 65434, 65435, 65436, 65437, 65438);
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$result = Multibyte::utf8($string);
		$expected = array(292, 275, 314, 316, 335, 44, 32, 372, 337, 345, 316, 271, 33);
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$result = Multibyte::utf8($string);
		$expected = array(72, 101, 108, 108, 111, 44, 32, 87, 111, 114, 108, 100, 33);
		$this->assertEquals($expected, $result);

		$string = '¨';
		$result = Multibyte::utf8($string);
		$expected = array(168);
		$this->assertEquals($expected, $result);

		$string = '¿';
		$result = Multibyte::utf8($string);
		$expected = array(191);
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$result = Multibyte::utf8($string);
		$expected = array(269, 105, 110, 105);
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$result = Multibyte::utf8($string);
		$expected = array(109, 111, 263, 105);
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$result = Multibyte::utf8($string);
		$expected = array(100, 114, 382, 97, 118, 110, 105);
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$result = Multibyte::utf8($string);
		$expected = array(25226, 30334, 24230, 35774, 20026, 39318, 39029);
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$result = Multibyte::utf8($string);
		$expected = array(19968, 20108, 19977, 21608, 27704, 40845);
		$this->assertEquals($expected, $result);

		$string = 'ԀԂԄԆԈԊԌԎԐԒ';
		$result = Multibyte::utf8($string);
		$expected = array(1280, 1282, 1284, 1286, 1288, 1290, 1292, 1294, 1296, 1298);
		$this->assertEquals($expected, $result);

		$string = 'ԁԃԅԇԉԋԍԏԐԒ';
		$result = Multibyte::utf8($string);
		$expected = array(1281, 1283, 1285, 1287, 1289, 1291, 1293, 1295, 1296, 1298);
		$this->assertEquals($expected, $result);

		$string = 'ԱԲԳԴԵԶԷԸԹԺԻԼԽԾԿՀՁՂՃՄՅՆՇՈՉՊՋՌՍՎՏՐՑՒՓՔՕՖև';
		$result = Multibyte::utf8($string);
		$expected = array(1329, 1330, 1331, 1332, 1333, 1334, 1335, 1336, 1337, 1338, 1339, 1340, 1341, 1342, 1343, 1344, 1345, 1346,
								1347, 1348, 1349, 1350, 1351, 1352, 1353, 1354, 1355, 1356, 1357, 1358, 1359, 1360, 1361, 1362, 1363, 1364,
								1365, 1366, 1415);
		$this->assertEquals($expected, $result);

		$string = 'աբգդեզէըթժիլխծկհձղճմյնշոչպջռսվտրցւփքօֆև';
		$result = Multibyte::utf8($string);
		$expected = array(1377, 1378, 1379, 1380, 1381, 1382, 1383, 1384, 1385, 1386, 1387, 1388, 1389, 1390, 1391, 1392, 1393, 1394,
								1395, 1396, 1397, 1398, 1399, 1400, 1401, 1402, 1403, 1404, 1405, 1406, 1407, 1408, 1409, 1410, 1411, 1412,
								1413, 1414, 1415);
		$this->assertEquals($expected, $result);

		$string = 'ႠႡႢႣႤႥႦႧႨႩႪႫႬႭႮႯႰႱႲႳႴႵႶႷႸႹႺႻႼႽႾႿჀჁჂჃჄჅ';
		$result = Multibyte::utf8($string);
		$expected = array(4256, 4257, 4258, 4259, 4260, 4261, 4262, 4263, 4264, 4265, 4266, 4267, 4268, 4269, 4270, 4271, 4272, 4273,
								4274, 4275, 4276, 4277, 4278, 4279, 4280, 4281, 4282, 4283, 4284, 4285, 4286, 4287, 4288, 4289, 4290, 4291,
								4292, 4293);
		$this->assertEquals($expected, $result);

		$string = 'ḀḂḄḆḈḊḌḎḐḒḔḖḘḚḜḞḠḢḤḦḨḪḬḮḰḲḴḶḸḺḼḾṀṂṄṆṈṊṌṎṐṒṔṖṘṚṜṞṠṢṤṦṨṪṬṮṰṲṴṶṸṺṼṾẀẂẄẆẈẊẌẎẐẒẔẖẗẘẙẚẠẢẤẦẨẪẬẮẰẲẴẶẸẺẼẾỀỂỄỆỈỊỌỎỐỒỔỖỘỚỜỞỠỢỤỦỨỪỬỮỰỲỴỶỸ';
		$result = Multibyte::utf8($string);
		$expected = array(7680, 7682, 7684, 7686, 7688, 7690, 7692, 7694, 7696, 7698, 7700, 7702, 7704, 7706, 7708, 7710, 7712, 7714,
								7716, 7718, 7720, 7722, 7724, 7726, 7728, 7730, 7732, 7734, 7736, 7738, 7740, 7742, 7744, 7746, 7748, 7750,
								7752, 7754, 7756, 7758, 7760, 7762, 7764, 7766, 7768, 7770, 7772, 7774, 7776, 7778, 7780, 7782, 7784, 7786,
								7788, 7790, 7792, 7794, 7796, 7798, 7800, 7802, 7804, 7806, 7808, 7810, 7812, 7814, 7816, 7818, 7820, 7822,
								7824, 7826, 7828, 7830, 7831, 7832, 7833, 7834, 7840, 7842, 7844, 7846, 7848, 7850, 7852, 7854, 7856,
								7858, 7860, 7862, 7864, 7866, 7868, 7870, 7872, 7874, 7876, 7878, 7880, 7882, 7884, 7886, 7888, 7890, 7892,
								7894, 7896, 7898, 7900, 7902, 7904, 7906, 7908, 7910, 7912, 7914, 7916, 7918, 7920, 7922, 7924, 7926, 7928);
		$this->assertEquals($expected, $result);

		$string = 'ḁḃḅḇḉḋḍḏḑḓḕḗḙḛḝḟḡḣḥḧḩḫḭḯḱḳḵḷḹḻḽḿṁṃṅṇṉṋṍṏṑṓṕṗṙṛṝṟṡṣṥṧṩṫṭṯṱṳṵṷṹṻṽṿẁẃẅẇẉẋẍẏẑẓẕẖẗẘẙẚạảấầẩẫậắằẳẵặẹẻẽếềểễệỉịọỏốồổỗộớờởỡợụủứừửữựỳỵỷỹ';
		$result = Multibyte::utf8($string);
		$expected = array(7681, 7683, 7685, 7687, 7689, 7691, 7693, 7695, 7697, 7699, 7701, 7703, 7705, 7707, 7709, 7711, 7713, 7715,
									7717, 7719, 7721, 7723, 7725, 7727, 7729, 7731, 7733, 7735, 7737, 7739, 7741, 7743, 7745, 7747, 7749, 7751,
									7753, 7755, 7757, 7759, 7761, 7763, 7765, 7767, 7769, 7771, 7773, 7775, 7777, 7779, 7781, 7783, 7785, 7787,
									7789, 7791, 7793, 7795, 7797, 7799, 7801, 7803, 7805, 7807, 7809, 7811, 7813, 7815, 7817, 7819, 7821, 7823,
									7825, 7827, 7829, 7830, 7831, 7832, 7833, 7834, 7841, 7843, 7845, 7847, 7849, 7851, 7853, 7855, 7857, 7859,
									7861, 7863, 7865, 7867, 7869, 7871, 7873, 7875, 7877, 7879, 7881, 7883, 7885, 7887, 7889, 7891, 7893, 7895,
									7897, 7899, 7901, 7903, 7905, 7907, 7909, 7911, 7913, 7915, 7917, 7919, 7921, 7923, 7925, 7927, 7929);
		$this->assertEquals($expected, $result);

		$string = 'ΩKÅℲ';
		$result = Multibyte::utf8($string);
		$expected = array(8486, 8490, 8491, 8498);
		$this->assertEquals($expected, $result);

		$string = 'ωkåⅎ';
		$result = Multibyte::utf8($string);
		$expected = array(969, 107, 229, 8526);
		$this->assertEquals($expected, $result);

		$string = 'ⅠⅡⅢⅣⅤⅥⅦⅧⅨⅩⅪⅫⅬⅭⅮⅯↃ';
		$result = Multibyte::utf8($string);
		$expected = array(8544, 8545, 8546, 8547, 8548, 8549, 8550, 8551, 8552, 8553, 8554, 8555, 8556, 8557, 8558, 8559, 8579);
		$this->assertEquals($expected, $result);

		$string = 'ⅰⅱⅲⅳⅴⅵⅶⅷⅸⅹⅺⅻⅼⅽⅾⅿↄ';
		$result = Multibyte::utf8($string);
		$expected = array(8560, 8561, 8562, 8563, 8564, 8565, 8566, 8567, 8568, 8569, 8570, 8571, 8572, 8573, 8574, 8575, 8580);
		$this->assertEquals($expected, $result);

		$string = 'ⒶⒷⒸⒹⒺⒻⒼⒽⒾⒿⓀⓁⓂⓃⓄⓅⓆⓇⓈⓉⓊⓋⓌⓍⓎⓏ';
		$result = Multibyte::utf8($string);
		$expected = array(9398, 9399, 9400, 9401, 9402, 9403, 9404, 9405, 9406, 9407, 9408, 9409, 9410, 9411, 9412, 9413, 9414,
								9415, 9416, 9417, 9418, 9419, 9420, 9421, 9422, 9423);
		$this->assertEquals($expected, $result);

		$string = 'ⓐⓑⓒⓓⓔⓕⓖⓗⓘⓙⓚⓛⓜⓝⓞⓟⓠⓡⓢⓣⓤⓥⓦⓧⓨⓩ';
		$result = Multibyte::utf8($string);
		$expected = array(9424, 9425, 9426, 9427, 9428, 9429, 9430, 9431, 9432, 9433, 9434, 9435, 9436, 9437, 9438, 9439, 9440, 9441,
								9442, 9443, 9444, 9445, 9446, 9447, 9448, 9449);
		$this->assertEquals($expected, $result);

		$string = 'ⰀⰁⰂⰃⰄⰅⰆⰇⰈⰉⰊⰋⰌⰍⰎⰏⰐⰑⰒⰓⰔⰕⰖⰗⰘⰙⰚⰛⰜⰝⰞⰟⰠⰡⰢⰣⰤⰥⰦⰧⰨⰩⰪⰫⰬⰭⰮ';
		$result = Multibyte::utf8($string);
		$expected = array(11264, 11265, 11266, 11267, 11268, 11269, 11270, 11271, 11272, 11273, 11274, 11275, 11276, 11277, 11278,
								11279, 11280, 11281, 11282, 11283, 11284, 11285, 11286, 11287, 11288, 11289, 11290, 11291, 11292, 11293,
								11294, 11295, 11296, 11297, 11298, 11299, 11300, 11301, 11302, 11303, 11304, 11305, 11306, 11307, 11308,
								11309, 11310);
		$this->assertEquals($expected, $result);

		$string = 'ⰰⰱⰲⰳⰴⰵⰶⰷⰸⰹⰺⰻⰼⰽⰾⰿⱀⱁⱂⱃⱄⱅⱆⱇⱈⱉⱊⱋⱌⱍⱎⱏⱐⱑⱒⱓⱔⱕⱖⱗⱘⱙⱚⱛⱜⱝⱞ';
		$result = Multibyte::utf8($string);
		$expected = array(11312, 11313, 11314, 11315, 11316, 11317, 11318, 11319, 11320, 11321, 11322, 11323, 11324, 11325, 11326, 11327,
								11328, 11329, 11330, 11331, 11332, 11333, 11334, 11335, 11336, 11337, 11338, 11339, 11340, 11341, 11342, 11343,
								11344, 11345, 11346, 11347, 11348, 11349, 11350, 11351, 11352, 11353, 11354, 11355, 11356, 11357, 11358);
		$this->assertEquals($expected, $result);

		$string = 'ⲀⲂⲄⲆⲈⲊⲌⲎⲐⲒⲔⲖⲘⲚⲜⲞⲠⲢⲤⲦⲨⲪⲬⲮⲰⲲⲴⲶⲸⲺⲼⲾⳀⳂⳄⳆⳈⳊⳌⳎⳐⳒⳔⳖⳘⳚⳜⳞⳠⳢ';
		$result = Multibyte::utf8($string);
		$expected = array(11392, 11394, 11396, 11398, 11400, 11402, 11404, 11406, 11408, 11410, 11412, 11414, 11416, 11418, 11420,
									11422, 11424, 11426, 11428, 11430, 11432, 11434, 11436, 11438, 11440, 11442, 11444, 11446, 11448, 11450,
									11452, 11454, 11456, 11458, 11460, 11462, 11464, 11466, 11468, 11470, 11472, 11474, 11476, 11478, 11480,
									11482, 11484, 11486, 11488, 11490);
		$this->assertEquals($expected, $result);

		$string = 'ⲁⲃⲅⲇⲉⲋⲍⲏⲑⲓⲕⲗⲙⲛⲝⲟⲡⲣⲥⲧⲩⲫⲭⲯⲱⲳⲵⲷⲹⲻⲽⲿⳁⳃⳅⳇⳉⳋⳍⳏⳑⳓⳕⳗⳙⳛⳝⳟⳡⳣ';
		$result = Multibyte::utf8($string);
		$expected = array(11393, 11395, 11397, 11399, 11401, 11403, 11405, 11407, 11409, 11411, 11413, 11415, 11417, 11419, 11421, 11423,
								11425, 11427, 11429, 11431, 11433, 11435, 11437, 11439, 11441, 11443, 11445, 11447, 11449, 11451, 11453, 11455,
								11457, 11459, 11461, 11463, 11465, 11467, 11469, 11471, 11473, 11475, 11477, 11479, 11481, 11483, 11485, 11487,
								11489, 11491);
		$this->assertEquals($expected, $result);

		$string = 'ﬀﬁﬂﬃﬄﬅﬆﬓﬔﬕﬖﬗ';
		$result = Multibyte::utf8($string);
		$expected = array(64256, 64257, 64258, 64259, 64260, 64261, 64262, 64275, 64276, 64277, 64278, 64279);
		$this->assertEquals($expected, $result);
	}

/**
 * testAscii method
 *
 * @return void
 */
	public function testAscii() {
		$input = array(33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57,
							58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82,
							83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105,
							106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126);
		$result = Multibyte::ascii($input);

		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$this->assertEquals($expected, $result);

		$input = array(161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181,
								182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200);
		$result = Multibyte::ascii($input);

		$expected = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$this->assertEquals($expected, $result);

		$input = array(201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221,
								222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242,
								243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255, 256, 257, 258, 259, 260, 261, 262, 263,
								264, 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284,
								285, 286, 287, 288, 289, 290, 291, 292, 293, 294, 295, 296, 297, 298, 299, 300);
		$result = Multibyte::ascii($input);
		$expected = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$this->assertEquals($expected, $result);

		$input = array(301, 302, 303, 304, 305, 306, 307, 308, 309, 310, 311, 312, 313, 314, 315, 316, 317, 318, 319, 320, 321,
								322, 323, 324, 325, 326, 327, 328, 329, 330, 331, 332, 333, 334, 335, 336, 337, 338, 339, 340, 341, 342,
								343, 344, 345, 346, 347, 348, 349, 350, 351, 352, 353, 354, 355, 356, 357, 358, 359, 360, 361, 362, 363,
								364, 365, 366, 367, 368, 369, 370, 371, 372, 373, 374, 375, 376, 377, 378, 379, 380, 381, 382, 383, 384,
								385, 386, 387, 388, 389, 390, 391, 392, 393, 394, 395, 396, 397, 398, 399, 400);
		$expected = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$result = Multibyte::ascii($input);
		$this->assertEquals($expected, $result);

		$input = array(401, 402, 403, 404, 405, 406, 407, 408, 409, 410, 411, 412, 413, 414, 415, 416, 417, 418, 419, 420, 421,
								422, 423, 424, 425, 426, 427, 428, 429, 430, 431, 432, 433, 434, 435, 436, 437, 438, 439, 440, 441, 442,
								443, 444, 445, 446, 447, 448, 449, 450, 451, 452, 453, 454, 455, 456, 457, 458, 459, 460, 461, 462, 463,
								464, 465, 466, 467, 468, 469, 470, 471, 472, 473, 474, 475, 476, 477, 478, 479, 480, 481, 482, 483, 484,
								485, 486, 487, 488, 489, 490, 491, 492, 493, 494, 495, 496, 497, 498, 499, 500);
		$expected = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$result = Multibyte::ascii($input);
		$this->assertEquals($expected, $result);

		$input = array(601, 602, 603, 604, 605, 606, 607, 608, 609, 610, 611, 612, 613, 614, 615, 616, 617, 618, 619, 620, 621,
								622, 623, 624, 625, 626, 627, 628, 629, 630, 631, 632, 633, 634, 635, 636, 637, 638, 639, 640, 641, 642,
								643, 644, 645, 646, 647, 648, 649, 650, 651, 652, 653, 654, 655, 656, 657, 658, 659, 660, 661, 662, 663,
								664, 665, 666, 667, 668, 669, 670, 671, 672, 673, 674, 675, 676, 677, 678, 679, 680, 681, 682, 683, 684,
								685, 686, 687, 688, 689, 690, 691, 692, 693, 694, 695, 696, 697, 698, 699, 700);
		$expected = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$result = Multibyte::ascii($input);
		$this->assertEquals($expected, $result);

		$input = array(1024, 1025, 1026, 1027, 1028, 1029, 1030, 1031, 1032, 1033, 1034, 1035, 1036, 1037, 1038, 1039, 1040, 1041,
								1042, 1043, 1044, 1045, 1046, 1047, 1048, 1049, 1050, 1051);
		$expected = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$result = Multibyte::ascii($input);
		$this->assertEquals($expected, $result);

		$input = array(1052, 1053, 1054, 1055, 1056, 1057, 1058, 1059, 1060, 1061, 1062, 1063, 1064, 1065, 1066, 1067, 1068, 1069,
								1070, 1071, 1072, 1073, 1074, 1075, 1076, 1077, 1078, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086, 1087,
								1088, 1089, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098, 1099, 1100);
		$expected = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$result = Multibyte::ascii($input);
		$this->assertEquals($expected, $result);

		$input = array(1401, 1402, 1403, 1404, 1405, 1406, 1407);
		$expected = 'չպջռսվտ';
		$result = Multibyte::ascii($input);
		$this->assertEquals($expected, $result);

		$input = array(1601, 1602, 1603, 1604, 1605, 1606, 1607, 1608, 1609, 1610, 1611, 1612, 1613, 1614, 1615);
		$expected = 'فقكلمنهوىيًٌٍَُ';
		$result = Multibyte::ascii($input);
		$this->assertEquals($expected, $result);

		$input = array(10032, 10033, 10034, 10035, 10036, 10037, 10038, 10039, 10040, 10041, 10042, 10043, 10044,
								10045, 10046, 10047, 10048, 10049, 10050, 10051, 10052, 10053, 10054, 10055, 10056, 10057,
								10058, 10059, 10060, 10061, 10062, 10063, 10064, 10065, 10066, 10067, 10068, 10069, 10070,
								10071, 10072, 10073, 10074, 10075, 10076, 10077, 10078);
		$expected = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$result = Multibyte::ascii($input);
		$this->assertEquals($expected, $result);

		$input = array(11904, 11905, 11906, 11907, 11908, 11909, 11910, 11911, 11912, 11913, 11914, 11915, 11916, 11917, 11918, 11919,
								11920, 11921, 11922, 11923, 11924, 11925, 11926, 11927, 11928, 11929, 11931, 11932, 11933, 11934, 11935, 11936,
								11937, 11938, 11939, 11940, 11941, 11942, 11943, 11944, 11945, 11946, 11947, 11948, 11949, 11950, 11951, 11952,
								11953, 11954, 11955, 11956, 11957, 11958, 11959, 11960, 11961, 11962, 11963, 11964, 11965, 11966, 11967, 11968,
								11969, 11970, 11971, 11972, 11973, 11974, 11975, 11976, 11977, 11978, 11979, 11980, 11981, 11982, 11983, 11984,
								11985, 11986, 11987, 11988, 11989, 11990, 11991, 11992, 11993, 11994, 11995, 11996, 11997, 11998, 11999, 12000);
		$expected = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$result = Multibyte::ascii($input);
		$this->assertEquals($expected, $result);

		$input = array(12101, 12102, 12103, 12104, 12105, 12106, 12107, 12108, 12109, 12110, 12111, 12112, 12113, 12114, 12115, 12116,
								12117, 12118, 12119, 12120, 12121, 12122, 12123, 12124, 12125, 12126, 12127, 12128, 12129, 12130, 12131, 12132,
								12133, 12134, 12135, 12136, 12137, 12138, 12139, 12140, 12141, 12142, 12143, 12144, 12145, 12146, 12147, 12148,
								12149, 12150, 12151, 12152, 12153, 12154, 12155, 12156, 12157, 12158, 12159);
		$expected = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$result = Multibyte::ascii($input);
		$this->assertEquals($expected, $result);

		$input = array(45601, 45602, 45603, 45604, 45605, 45606, 45607, 45608, 45609, 45610, 45611, 45612, 45613, 45614, 45615, 45616,
								45617, 45618, 45619, 45620, 45621, 45622, 45623, 45624, 45625, 45626, 45627, 45628, 45629, 45630, 45631, 45632,
								45633, 45634, 45635, 45636, 45637, 45638, 45639, 45640, 45641, 45642, 45643, 45644, 45645, 45646, 45647, 45648,
								45649, 45650, 45651, 45652, 45653, 45654, 45655, 45656, 45657, 45658, 45659, 45660, 45661, 45662, 45663, 45664,
								45665, 45666, 45667, 45668, 45669, 45670, 45671, 45672, 45673, 45674, 45675, 45676, 45677, 45678, 45679, 45680,
								45681, 45682, 45683, 45684, 45685, 45686, 45687, 45688, 45689, 45690, 45691, 45692, 45693, 45694, 45695, 45696,
								45697, 45698, 45699, 45700);
		$expected = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$result = Multibyte::ascii($input);
		$this->assertEquals($expected, $result);

		$input = array(65136, 65137, 65138, 65139, 65140, 65141, 65142, 65143, 65144, 65145, 65146, 65147, 65148, 65149, 65150, 65151,
								65152, 65153, 65154, 65155, 65156, 65157, 65158, 65159, 65160, 65161, 65162, 65163, 65164, 65165, 65166, 65167,
								65168, 65169, 65170, 65171, 65172, 65173, 65174, 65175, 65176, 65177, 65178, 65179, 65180, 65181, 65182, 65183,
								65184, 65185, 65186, 65187, 65188, 65189, 65190, 65191, 65192, 65193, 65194, 65195, 65196, 65197, 65198, 65199,
								65200);
		$expected = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$result = Multibyte::ascii($input);
		$this->assertEquals($expected, $result);

		$input = array(65201, 65202, 65203, 65204, 65205, 65206, 65207, 65208, 65209, 65210, 65211, 65212, 65213, 65214, 65215, 65216,
								65217, 65218, 65219, 65220, 65221, 65222, 65223, 65224, 65225, 65226, 65227, 65228, 65229, 65230, 65231, 65232,
								65233, 65234, 65235, 65236, 65237, 65238, 65239, 65240, 65241, 65242, 65243, 65244, 65245, 65246, 65247, 65248,
								65249, 65250, 65251, 65252, 65253, 65254, 65255, 65256, 65257, 65258, 65259, 65260, 65261, 65262, 65263, 65264,
								65265, 65266, 65267, 65268, 65269, 65270, 65271, 65272, 65273, 65274, 65275, 65276);
		$expected = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$result = Multibyte::ascii($input);
		$this->assertEquals($expected, $result);

		$input = array(65345, 65346, 65347, 65348, 65349, 65350, 65351, 65352, 65353, 65354, 65355, 65356, 65357, 65358, 65359, 65360,
								65361, 65362, 65363, 65364, 65365, 65366, 65367, 65368, 65369, 65370);
		$expected = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$result = Multibyte::ascii($input);
		$this->assertEquals($expected, $result);

		$input = array(65377, 65378, 65379, 65380, 65381, 65382, 65383, 65384, 65385, 65386, 65387, 65388, 65389, 65390, 65391, 65392,
								65393, 65394, 65395, 65396, 65397, 65398, 65399, 65400);
		$expected = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$result = Multibyte::ascii($input);
		$this->assertEquals($expected, $result);

		$input = array(65401, 65402, 65403, 65404, 65405, 65406, 65407, 65408, 65409, 65410, 65411, 65412, 65413, 65414, 65415, 65416,
								65417, 65418, 65419, 65420, 65421, 65422, 65423, 65424, 65425, 65426, 65427, 65428, 65429, 65430, 65431, 65432,
								65433, 65434, 65435, 65436, 65437, 65438);
		$expected = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$result = Multibyte::ascii($input);
		$this->assertEquals($expected, $result);

		$input = array(292, 275, 314, 316, 335, 44, 32, 372, 337, 345, 316, 271, 33);
		$expected = 'Ĥēĺļŏ, Ŵőřļď!';
		$result = Multibyte::ascii($input);
		$this->assertEquals($expected, $result);

		$input = array(72, 101, 108, 108, 111, 44, 32, 87, 111, 114, 108, 100, 33);
		$expected = 'Hello, World!';
		$result = Multibyte::ascii($input);
		$this->assertEquals($expected, $result);

		$input = array(168);
		$expected = '¨';
		$result = Multibyte::ascii($input);
		$this->assertEquals($expected, $result);

		$input = array(191);
		$expected = '¿';
		$result = Multibyte::ascii($input);
		$this->assertEquals($expected, $result);

		$input = array(269, 105, 110, 105);
		$expected = 'čini';
		$result = Multibyte::ascii($input);
		$this->assertEquals($expected, $result);

		$input = array(109, 111, 263, 105);
		$expected = 'moći';
		$result = Multibyte::ascii($input);
		$this->assertEquals($expected, $result);

		$input = array(100, 114, 382, 97, 118, 110, 105);
		$expected = 'državni';
		$result = Multibyte::ascii($input);
		$this->assertEquals($expected, $result);

		$input = array(25226, 30334, 24230, 35774, 20026, 39318, 39029);
		$expected = '把百度设为首页';
		$result = Multibyte::ascii($input);
		$this->assertEquals($expected, $result);

		$input = array(19968, 20108, 19977, 21608, 27704, 40845);
		$expected = '一二三周永龍';
		$result = Multibyte::ascii($input);
		$this->assertEquals($expected, $result);

		$input = array(1280, 1282, 1284, 1286, 1288, 1290, 1292, 1294, 1296, 1298);
		$expected = 'ԀԂԄԆԈԊԌԎԐԒ';
		$result = Multibyte::ascii($input);
		$this->assertEquals($expected, $result);

		$input = array(1281, 1283, 1285, 1287, 1289, 1291, 1293, 1295, 1296, 1298);
		$expected = 'ԁԃԅԇԉԋԍԏԐԒ';
		$result = Multibyte::ascii($input);
		$this->assertEquals($expected, $result);

		$input = array(1329, 1330, 1331, 1332, 1333, 1334, 1335, 1336, 1337, 1338, 1339, 1340, 1341, 1342, 1343, 1344, 1345, 1346, 1347,
							1348, 1349, 1350, 1351, 1352, 1353, 1354, 1355, 1356, 1357, 1358, 1359, 1360, 1361, 1362, 1363, 1364, 1365,
							1366, 1415);
		$result = Multibyte::ascii($input);
		$expected = 'ԱԲԳԴԵԶԷԸԹԺԻԼԽԾԿՀՁՂՃՄՅՆՇՈՉՊՋՌՍՎՏՐՑՒՓՔՕՖև';
		$this->assertEquals($expected, $result);

		$input = array(1377, 1378, 1379, 1380, 1381, 1382, 1383, 1384, 1385, 1386, 1387, 1388, 1389, 1390, 1391, 1392, 1393, 1394,
								1395, 1396, 1397, 1398, 1399, 1400, 1401, 1402, 1403, 1404, 1405, 1406, 1407, 1408, 1409, 1410, 1411, 1412,
								1413, 1414, 1415);
		$result = Multibyte::ascii($input);
		$expected = 'աբգդեզէըթժիլխծկհձղճմյնշոչպջռսվտրցւփքօֆև';
		$this->assertEquals($expected, $result);

		$input = array(4256, 4257, 4258, 4259, 4260, 4261, 4262, 4263, 4264, 4265, 4266, 4267, 4268, 4269, 4270, 4271, 4272, 4273, 4274,
							4275, 4276, 4277, 4278, 4279, 4280, 4281, 4282, 4283, 4284, 4285, 4286, 4287, 4288, 4289, 4290, 4291, 4292, 4293);
		$result = Multibyte::ascii($input);
		$expected = 'ႠႡႢႣႤႥႦႧႨႩႪႫႬႭႮႯႰႱႲႳႴႵႶႷႸႹႺႻႼႽႾႿჀჁჂჃჄჅ';
		$this->assertEquals($expected, $result);

		$input = array(7680, 7682, 7684, 7686, 7688, 7690, 7692, 7694, 7696, 7698, 7700, 7702, 7704, 7706, 7708, 7710, 7712, 7714,
								7716, 7718, 7720, 7722, 7724, 7726, 7728, 7730, 7732, 7734, 7736, 7738, 7740, 7742, 7744, 7746, 7748, 7750,
								7752, 7754, 7756, 7758, 7760, 7762, 7764, 7766, 7768, 7770, 7772, 7774, 7776, 7778, 7780, 7782, 7784, 7786,
								7788, 7790, 7792, 7794, 7796, 7798, 7800, 7802, 7804, 7806, 7808, 7810, 7812, 7814, 7816, 7818, 7820, 7822,
								7824, 7826, 7828, 7830, 7831, 7832, 7833, 7834, 7840, 7842, 7844, 7846, 7848, 7850, 7852, 7854, 7856,
								7858, 7860, 7862, 7864, 7866, 7868, 7870, 7872, 7874, 7876, 7878, 7880, 7882, 7884, 7886, 7888, 7890, 7892,
								7894, 7896, 7898, 7900, 7902, 7904, 7906, 7908, 7910, 7912, 7914, 7916, 7918, 7920, 7922, 7924, 7926, 7928);
		$result = Multibyte::ascii($input);
		$expected = 'ḀḂḄḆḈḊḌḎḐḒḔḖḘḚḜḞḠḢḤḦḨḪḬḮḰḲḴḶḸḺḼḾṀṂṄṆṈṊṌṎṐṒṔṖṘṚṜṞṠṢṤṦṨṪṬṮṰṲṴṶṸṺṼṾẀẂẄẆẈẊẌẎẐẒẔẖẗẘẙẚẠẢẤẦẨẪẬẮẰẲẴẶẸẺẼẾỀỂỄỆỈỊỌỎỐỒỔỖỘỚỜỞỠỢỤỦỨỪỬỮỰỲỴỶỸ';
		$this->assertEquals($expected, $result);

		$input = array(7681, 7683, 7685, 7687, 7689, 7691, 7693, 7695, 7697, 7699, 7701, 7703, 7705, 7707, 7709, 7711, 7713, 7715,
							7717, 7719, 7721, 7723, 7725, 7727, 7729, 7731, 7733, 7735, 7737, 7739, 7741, 7743, 7745, 7747, 7749, 7751,
							7753, 7755, 7757, 7759, 7761, 7763, 7765, 7767, 7769, 7771, 7773, 7775, 7777, 7779, 7781, 7783, 7785, 7787,
							7789, 7791, 7793, 7795, 7797, 7799, 7801, 7803, 7805, 7807, 7809, 7811, 7813, 7815, 7817, 7819, 7821, 7823,
							7825, 7827, 7829, 7830, 7831, 7832, 7833, 7834, 7841, 7843, 7845, 7847, 7849, 7851, 7853, 7855, 7857, 7859,
							7861, 7863, 7865, 7867, 7869, 7871, 7873, 7875, 7877, 7879, 7881, 7883, 7885, 7887, 7889, 7891, 7893, 7895,
							7897, 7899, 7901, 7903, 7905, 7907, 7909, 7911, 7913, 7915, 7917, 7919, 7921, 7923, 7925, 7927, 7929);
		$result = Multibyte::ascii($input);
		$expected = 'ḁḃḅḇḉḋḍḏḑḓḕḗḙḛḝḟḡḣḥḧḩḫḭḯḱḳḵḷḹḻḽḿṁṃṅṇṉṋṍṏṑṓṕṗṙṛṝṟṡṣṥṧṩṫṭṯṱṳṵṷṹṻṽṿẁẃẅẇẉẋẍẏẑẓẕẖẗẘẙẚạảấầẩẫậắằẳẵặẹẻẽếềểễệỉịọỏốồổỗộớờởỡợụủứừửữựỳỵỷỹ';
		$this->assertEquals($expected, $result);

		$input = array(8486, 8490, 8491, 8498);
		$result = Multibyte::ascii($input);
		$expected = 'ΩKÅℲ';
		$this->assertEquals($expected, $result);

		$input = array(969, 107, 229, 8526);
		$result = Multibyte::ascii($input);
		$expected = 'ωkåⅎ';
		$this->assertEquals($expected, $result);

		$input = array(8544, 8545, 8546, 8547, 8548, 8549, 8550, 8551, 8552, 8553, 8554, 8555, 8556, 8557, 8558, 8559, 8579);
		$result = Multibyte::ascii($input);
		$expected = 'ⅠⅡⅢⅣⅤⅥⅦⅧⅨⅩⅪⅫⅬⅭⅮⅯↃ';
		$this->assertEquals($expected, $result);

		$input = array(8560, 8561, 8562, 8563, 8564, 8565, 8566, 8567, 8568, 8569, 8570, 8571, 8572, 8573, 8574, 8575, 8580);
		$result = Multibyte::ascii($input);
		$expected = 'ⅰⅱⅲⅳⅴⅵⅶⅷⅸⅹⅺⅻⅼⅽⅾⅿↄ';
		$this->assertEquals($expected, $result);

		$input = array(9398, 9399, 9400, 9401, 9402, 9403, 9404, 9405, 9406, 9407, 9408, 9409, 9410, 9411, 9412, 9413, 9414,
							9415, 9416, 9417, 9418, 9419, 9420, 9421, 9422, 9423);
		$result = Multibyte::ascii($input);
		$expected = 'ⒶⒷⒸⒹⒺⒻⒼⒽⒾⒿⓀⓁⓂⓃⓄⓅⓆⓇⓈⓉⓊⓋⓌⓍⓎⓏ';
		$this->assertEquals($expected, $result);

		$input = array(9424, 9425, 9426, 9427, 9428, 9429, 9430, 9431, 9432, 9433, 9434, 9435, 9436, 9437, 9438, 9439, 9440, 9441,
							9442, 9443, 9444, 9445, 9446, 9447, 9448, 9449);
		$result = Multibyte::ascii($input);
		$expected = 'ⓐⓑⓒⓓⓔⓕⓖⓗⓘⓙⓚⓛⓜⓝⓞⓟⓠⓡⓢⓣⓤⓥⓦⓧⓨⓩ';
		$this->assertEquals($expected, $result);

		$input = array(11264, 11265, 11266, 11267, 11268, 11269, 11270, 11271, 11272, 11273, 11274, 11275, 11276, 11277, 11278, 11279,
							11280, 11281, 11282, 11283, 11284, 11285, 11286, 11287, 11288, 11289, 11290, 11291, 11292, 11293, 11294, 11295,
							11296, 11297, 11298, 11299, 11300, 11301, 11302, 11303, 11304, 11305, 11306, 11307, 11308, 11309, 11310);
		$result = Multibyte::ascii($input);
		$expected = 'ⰀⰁⰂⰃⰄⰅⰆⰇⰈⰉⰊⰋⰌⰍⰎⰏⰐⰑⰒⰓⰔⰕⰖⰗⰘⰙⰚⰛⰜⰝⰞⰟⰠⰡⰢⰣⰤⰥⰦⰧⰨⰩⰪⰫⰬⰭⰮ';
		$this->assertEquals($expected, $result);

		$input = array(11312, 11313, 11314, 11315, 11316, 11317, 11318, 11319, 11320, 11321, 11322, 11323, 11324, 11325, 11326, 11327,
							11328, 11329, 11330, 11331, 11332, 11333, 11334, 11335, 11336, 11337, 11338, 11339, 11340, 11341, 11342, 11343,
							11344, 11345, 11346, 11347, 11348, 11349, 11350, 11351, 11352, 11353, 11354, 11355, 11356, 11357, 11358);
		$result = Multibyte::ascii($input);
		$expected = 'ⰰⰱⰲⰳⰴⰵⰶⰷⰸⰹⰺⰻⰼⰽⰾⰿⱀⱁⱂⱃⱄⱅⱆⱇⱈⱉⱊⱋⱌⱍⱎⱏⱐⱑⱒⱓⱔⱕⱖⱗⱘⱙⱚⱛⱜⱝⱞ';
		$this->assertEquals($expected, $result);

		$input = array(11392, 11394, 11396, 11398, 11400, 11402, 11404, 11406, 11408, 11410, 11412, 11414, 11416, 11418, 11420,
									11422, 11424, 11426, 11428, 11430, 11432, 11434, 11436, 11438, 11440, 11442, 11444, 11446, 11448, 11450,
									11452, 11454, 11456, 11458, 11460, 11462, 11464, 11466, 11468, 11470, 11472, 11474, 11476, 11478, 11480,
									11482, 11484, 11486, 11488, 11490);
		$result = Multibyte::ascii($input);
		$expected = 'ⲀⲂⲄⲆⲈⲊⲌⲎⲐⲒⲔⲖⲘⲚⲜⲞⲠⲢⲤⲦⲨⲪⲬⲮⲰⲲⲴⲶⲸⲺⲼⲾⳀⳂⳄⳆⳈⳊⳌⳎⳐⳒⳔⳖⳘⳚⳜⳞⳠⳢ';
		$this->assertEquals($expected, $result);

		$input = array(11393, 11395, 11397, 11399, 11401, 11403, 11405, 11407, 11409, 11411, 11413, 11415, 11417, 11419, 11421, 11423,
							11425, 11427, 11429, 11431, 11433, 11435, 11437, 11439, 11441, 11443, 11445, 11447, 11449, 11451, 11453, 11455,
							11457, 11459, 11461, 11463, 11465, 11467, 11469, 11471, 11473, 11475, 11477, 11479, 11481, 11483, 11485, 11487,
							11489, 11491);
		$result = Multibyte::ascii($input);
		$expected = 'ⲁⲃⲅⲇⲉⲋⲍⲏⲑⲓⲕⲗⲙⲛⲝⲟⲡⲣⲥⲧⲩⲫⲭⲯⲱⲳⲵⲷⲹⲻⲽⲿⳁⳃⳅⳇⳉⳋⳍⳏⳑⳓⳕⳗⳙⳛⳝⳟⳡⳣ';
		$this->assertEquals($expected, $result);

		$input = array(64256, 64257, 64258, 64259, 64260, 64261, 64262, 64275, 64276, 64277, 64278, 64279);
		$result = Multibyte::ascii($input);
		$expected = 'ﬀﬁﬂﬃﬄﬅﬆﬓﬔﬕﬖﬗ';
		$this->assertEquals($expected, $result);
	}

/**
 * testUsingMbStripos method
 *
 * @return void
 */
	public function testUsingMbStripos() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'f';
		$result = mb_stripos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ABCDEFGHIJKLMNOPQFRSTUVWXYZ0123456789';
		$find = 'f';
		$result = mb_stripos($string, $find, 6);
		$expected = 17;
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'å';
		$result = mb_stripos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÅÙÚÛÜÝÞ';
		$find = 'å';
		$result = mb_stripos($string, $find, 6);
		$expected = 24;
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'ċ';
		$result = mb_stripos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁĊŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'ċ';
		$result = mb_stripos($string, $find, 6);
		$expected = 32;
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'f';
		$result = mb_stripos($string, $find);
		$expected = 37;
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'Μ';
		$result = mb_stripos($string, $find);
		$expected = 20;
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'É';
		$result = mb_stripos($string, $find, 6);
		$expected = 32;
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = mb_stripos($string, $find);
		$expected = 24;
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$find = 'Ƹ';
		$result = mb_stripos($string, $find);
		$expected = 39;
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$find = 'Ƹ';
		$result = mb_stripos($string, $find, 40);
		$expected = 40;
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'Ʀ';
		$result = mb_stripos($string, $find);
		$expected = 39;
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'ї';
		$result = mb_stripos($string, $find);
		$expected = 7;
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = mb_stripos($string, $find);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = mb_stripos($string, $find, 5);
		$expected = 36;
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = mb_stripos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = mb_stripos($string, $find);
		$expected = 15;
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = mb_stripos($string, $find);
		$expected = 16;
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = mb_stripos($string, $find);
		$expected = 31;
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = mb_stripos($string, $find);
		$expected = 26;
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = mb_stripos($string, $find);
		$expected = 46;
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = mb_stripos($string, $find);
		$expected = 45;
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = mb_stripos($string, $find);
		$expected = 10;
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'Ｋ';
		$result = mb_stripos($string, $find);
		$expected = 10;
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = mb_stripos($string, $find);
		$expected = 16;
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = mb_stripos($string, $find);
		$expected = 17;
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = mb_stripos($string, $find);
		$expected = 8;
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'Ő';
		$result = mb_stripos($string, $find);
		$expected = 8;
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'O';
		$result = mb_stripos($string, $find);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'o';
		$result = mb_stripos($string, $find);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'n';
		$result = mb_stripos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'N';
		$result = mb_stripos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'ć';
		$result = mb_stripos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'Ć';
		$result = mb_stripos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'ž';
		$result = mb_stripos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'Ž';
		$result = mb_stripos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$find = '设';
		$result = mb_stripos($string, $find);
		$expected = 3;
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '周';
		$result = mb_stripos($string, $find);
		$expected = 3;
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'DŽ';
		$result = mb_stripos($string, $find);
		$expected = false;
		$this->assertEquals($expected, $result);
	}

/**
 * testMultibyteStripos method
 *
 * @return void
 */
	public function testMultibyteStripos() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'f';
		$result = Multibyte::stripos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ABCDEFGHIJKLMNOPQFRSTUVWXYZ0123456789';
		$find = 'f';
		$result = Multibyte::stripos($string, $find, 6);
		$expected = 17;
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'å';
		$result = Multibyte::stripos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÅÙÚÛÜÝÞ';
		$find = 'å';
		$result = Multibyte::stripos($string, $find, 6);
		$expected = 24;
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'ċ';
		$result = Multibyte::stripos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁĊŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'ċ';
		$result = Multibyte::stripos($string, $find, 6);
		$expected = 32;
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'f';
		$result = Multibyte::stripos($string, $find);
		$expected = 37;
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'Μ';
		$result = Multibyte::stripos($string, $find);
		$expected = 20;
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'É';
		$result = Multibyte::stripos($string, $find, 6);
		$expected = 32;
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = Multibyte::stripos($string, $find);
		$expected = 24;
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$find = 'Ƹ';
		$result = Multibyte::stripos($string, $find);
		$expected = 39;
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$find = 'Ƹ';
		$result = Multibyte::stripos($string, $find, 40);
		$expected = 40;
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'Ʀ';
		$result = Multibyte::stripos($string, $find);
		$expected = 39;
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'ї';
		$result = Multibyte::stripos($string, $find);
		$expected = 7;
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = Multibyte::stripos($string, $find);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = Multibyte::stripos($string, $find, 5);
		$expected = 36;
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = Multibyte::stripos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = Multibyte::stripos($string, $find);
		$expected = 15;
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = Multibyte::stripos($string, $find);
		$expected = 16;
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = Multibyte::stripos($string, $find);
		$expected = 31;
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = Multibyte::stripos($string, $find);
		$expected = 26;
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = Multibyte::stripos($string, $find);
		$expected = 46;
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = Multibyte::stripos($string, $find);
		$expected = 45;
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = Multibyte::stripos($string, $find);
		$expected = 10;
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'Ｋ';
		$result = Multibyte::stripos($string, $find);
		$expected = 10;
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = Multibyte::stripos($string, $find);
		$expected = 16;
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = Multibyte::stripos($string, $find);
		$expected = 17;
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = Multibyte::stripos($string, $find);
		$expected = 8;
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'Ő';
		$result = Multibyte::stripos($string, $find);
		$expected = 8;
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'O';
		$result = Multibyte::stripos($string, $find);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'o';
		$result = Multibyte::stripos($string, $find);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'n';
		$result = Multibyte::stripos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'N';
		$result = Multibyte::stripos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'ć';
		$result = Multibyte::stripos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'Ć';
		$result = Multibyte::stripos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'ž';
		$result = Multibyte::stripos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'Ž';
		$result = Multibyte::stripos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$find = '设';
		$result = Multibyte::stripos($string, $find);
		$expected = 3;
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '周';
		$result = Multibyte::stripos($string, $find);
		$expected = 3;
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'DŽ';
		$result = Multibyte::stripos($string, $find);
		$expected = false;
		$this->assertEquals($expected, $result);
	}

/**
 * testUsingMbStristr method
 *
 * @return void
 */
	public function testUsingMbStristr() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'f';
		$result = mb_stristr($string, $find);
		$expected = 'FGHIJKLMNOPQRSTUVWXYZ0123456789';
		$this->assertEquals($expected, $result);

		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'f';
		$result = mb_stristr($string, $find, true);
		$expected = 'ABCDE';
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'å';
		$result = mb_stristr($string, $find);
		$expected = 'ÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'å';
		$result = mb_stristr($string, $find, true);
		$expected = 'ÀÁÂÃÄ';
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'ċ';
		$result = mb_stristr($string, $find);
		$expected = 'ĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'ċ';
		$result = mb_stristr($string, $find, true);
		$expected = 'ĀĂĄĆĈ';
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'f';
		$result = mb_stristr($string, $find);
		$expected = 'FGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'f';
		$result = mb_stristr($string, $find, true);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDE';
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'Μ';
		$result = mb_stristr($string, $find);
		$expected = 'µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'Μ';
		$result = mb_stristr($string, $find, true);
		$expected = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´';
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'þ';
		$result = mb_stristr($string, $find);
		$expected = 'Þßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'þ';
		$result = mb_stristr($string, $find, true);
		$expected = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝ';
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = mb_stristr($string, $find);
		$expected = 'ŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = mb_stristr($string, $find, true);
		$expected = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃń';
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$find = 'Ƹ';
		$result = mb_stristr($string, $find);
		$expected = 'ƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$this->assertEquals($expected, $result);

		$find = 'Ƹ';
		$result = mb_stristr($string, $find, true);
		$expected = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷ';
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'Ʀ';
		$result = mb_stristr($string, $find);
		$expected = 'ʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'Ʀ';
		$result = mb_stristr($string, $find, true);
		$expected = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿ';
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'ї';
		$result = mb_stristr($string, $find);
		$expected = 'ЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'ї';
		$result = mb_stristr($string, $find, true);
		$expected = 'ЀЁЂЃЄЅІ';
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = mb_stristr($string, $find);
		$expected = 'РСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = mb_stristr($string, $find, true);
		$expected = 'МНОП';
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = mb_stristr($string, $find);
		$expected = 'نهوىيًٌٍَُ';
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = mb_stristr($string, $find, true);
		$expected = 'فقكلم';
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = mb_stristr($string, $find);
		$expected = '✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = mb_stristr($string, $find, true);
		$expected = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾';
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = mb_stristr($string, $find);
		$expected = '⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = mb_stristr($string, $find, true);
		$expected = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏';
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = mb_stristr($string, $find);
		$expected = '⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = mb_stristr($string, $find, true);
		$expected = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣';
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = mb_stristr($string, $find);
		$expected = '눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = mb_stristr($string, $find, true);
		$expected = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺';
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = mb_stristr($string, $find);
		$expected = 'ﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = mb_stristr($string, $find, true);
		$expected = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝ';
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = mb_stristr($string, $find);
		$expected = 'ﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = mb_stristr($string, $find, true);
		$expected = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝ';
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'Ｋ';
		$result = mb_stristr($string, $find);
		$expected = 'ｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'Ｋ';
		$result = mb_stristr($string, $find, true);
		$expected = 'ａｂｃｄｅｆｇｈｉｊ';
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = mb_stristr($string, $find);
		$expected = 'ｱｲｳｴｵｶｷｸ';
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = mb_stristr($string, $find, true);
		$expected = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰ';
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = mb_stristr($string, $find);
		$expected = 'ﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = mb_stristr($string, $find, true);
		$expected = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉ';
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'Ő';
		$result = mb_stristr($string, $find);
		$expected = 'őřļď!';
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'Ő';
		$result = mb_stristr($string, $find, true);
		$expected = 'Ĥēĺļŏ, Ŵ';
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ĺļ';
		$result = mb_stristr($string, $find, true);
		$expected = 'Ĥē';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'O';
		$result = mb_stristr($string, $find);
		$expected = 'o, World!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'O';
		$result = mb_stristr($string, $find, true);
		$expected = 'Hell';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = mb_stristr($string, $find);
		$expected = 'World!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = mb_stristr($string, $find, true);
		$expected = 'Hello, ';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'll';
		$result = mb_stristr($string, $find);
		$expected = 'llo, World!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'll';
		$result = mb_stristr($string, $find, true);
		$expected = 'He';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = mb_stristr($string, $find);
		$expected = 'rld!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = mb_stristr($string, $find, true);
		$expected = 'Hello, Wo';
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'N';
		$result = mb_stristr($string, $find);
		$expected = 'ni';
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'N';
		$result = mb_stristr($string, $find, true);
		$expected = 'či';
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'Ć';
		$result = mb_stristr($string, $find);
		$expected = 'ći';
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'Ć';
		$result = mb_stristr($string, $find, true);
		$expected = 'mo';
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'Ž';
		$result = mb_stristr($string, $find);
		$expected = 'žavni';
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'Ž';
		$result = mb_stristr($string, $find, true);
		$expected = 'dr';
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$find = '设';
		$result = mb_stristr($string, $find);
		$expected = '设为首页';
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$find = '设';
		$result = mb_stristr($string, $find, true);
		$expected = '把百度';
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '周';
		$result = mb_stristr($string, $find);
		$expected = '周永龍';
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '周';
		$result = mb_stristr($string, $find, true);
		$expected = '一二三';
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '二周';
		$result = mb_stristr($string, $find);
		$expected = false;
		$this->assertEquals($expected, $result);
	}

/**
 * testMultibyteStristr method
 *
 * @return void
 */
	public function testMultibyteStristr() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'f';
		$result = Multibyte::stristr($string, $find);
		$expected = 'FGHIJKLMNOPQRSTUVWXYZ0123456789';
		$this->assertEquals($expected, $result);

		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'f';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'ABCDE';
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'å';
		$result = Multibyte::stristr($string, $find);
		$expected = 'ÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'å';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'ÀÁÂÃÄ';
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'ċ';
		$result = Multibyte::stristr($string, $find);
		$expected = 'ĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'ċ';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'ĀĂĄĆĈ';
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'f';
		$result = Multibyte::stristr($string, $find);
		$expected = 'FGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'f';
		$result = Multibyte::stristr($string, $find, true);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDE';
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'Μ';
		$result = Multibyte::stristr($string, $find);
		$expected = 'µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'Μ';
		$result = Multibyte::stristr($string, $find, true);
		$expected = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´';
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'þ';
		$result = Multibyte::stristr($string, $find);
		$expected = 'Þßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'þ';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝ';
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = Multibyte::stristr($string, $find);
		$expected = 'ŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃń';
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$find = 'Ƹ';
		$result = Multibyte::stristr($string, $find);
		$expected = 'ƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$this->assertEquals($expected, $result);

		$find = 'Ƹ';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷ';
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'Ʀ';
		$result = Multibyte::stristr($string, $find);
		$expected = 'ʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'Ʀ';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿ';
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'ї';
		$result = Multibyte::stristr($string, $find);
		$expected = 'ЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'ї';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'ЀЁЂЃЄЅІ';
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = Multibyte::stristr($string, $find);
		$expected = 'РСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'МНОП';
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = Multibyte::stristr($string, $find);
		$expected = 'نهوىيًٌٍَُ';
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'فقكلم';
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = Multibyte::stristr($string, $find);
		$expected = '✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = Multibyte::stristr($string, $find, true);
		$expected = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾';
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = Multibyte::stristr($string, $find);
		$expected = '⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = Multibyte::stristr($string, $find, true);
		$expected = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏';
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = Multibyte::stristr($string, $find);
		$expected = '⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = Multibyte::stristr($string, $find, true);
		$expected = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣';
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = Multibyte::stristr($string, $find);
		$expected = '눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = Multibyte::stristr($string, $find, true);
		$expected = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺';
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = Multibyte::stristr($string, $find);
		$expected = 'ﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝ';
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = Multibyte::stristr($string, $find);
		$expected = 'ﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝ';
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'Ｋ';
		$result = Multibyte::stristr($string, $find);
		$expected = 'ｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'Ｋ';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'ａｂｃｄｅｆｇｈｉｊ';
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = Multibyte::stristr($string, $find);
		$expected = 'ｱｲｳｴｵｶｷｸ';
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = Multibyte::stristr($string, $find, true);
		$expected = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰ';
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = Multibyte::stristr($string, $find);
		$expected = 'ﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉ';
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'Ő';
		$result = Multibyte::stristr($string, $find);
		$expected = 'őřļď!';
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'Ő';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'Ĥēĺļŏ, Ŵ';
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ĺļ';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'Ĥē';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'O';
		$result = Multibyte::stristr($string, $find);
		$expected = 'o, World!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'O';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'Hell';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = Multibyte::stristr($string, $find);
		$expected = 'World!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'Hello, ';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'll';
		$result = Multibyte::stristr($string, $find);
		$expected = 'llo, World!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'll';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'He';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = Multibyte::stristr($string, $find);
		$expected = 'rld!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'Hello, Wo';
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'N';
		$result = Multibyte::stristr($string, $find);
		$expected = 'ni';
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'N';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'či';
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'Ć';
		$result = Multibyte::stristr($string, $find);
		$expected = 'ći';
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'Ć';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'mo';
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'Ž';
		$result = Multibyte::stristr($string, $find);
		$expected = 'žavni';
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'Ž';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'dr';
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$find = '设';
		$result = Multibyte::stristr($string, $find);
		$expected = '设为首页';
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$find = '设';
		$result = Multibyte::stristr($string, $find, true);
		$expected = '把百度';
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '周';
		$result = Multibyte::stristr($string, $find);
		$expected = '周永龍';
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '周';
		$result = Multibyte::stristr($string, $find, true);
		$expected = '一二三';
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '二周';
		$result = Multibyte::stristr($string, $find);
		$expected = false;
		$this->assertEquals($expected, $result);
	}

/**
 * testUsingMbStrlen method
 *
 * @return void
 */
	public function testUsingMbStrlen() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$result = mb_strlen($string);
		$expected = 36;
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$result = mb_strlen($string);
		$expected = 30;
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$result = mb_strlen($string);
		$expected = 61;
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$result = mb_strlen($string);
		$expected = 94;
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$result = mb_strlen($string);
		$expected = 40;
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$result = mb_strlen($string);
		$expected = 100;
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$result = mb_strlen($string);
		$expected = 100;
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$result = mb_strlen($string);
		$expected = 100;
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$result = mb_strlen($string);
		$expected = 100;
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$result = mb_strlen($string);
		$expected = 28;
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$result = mb_strlen($string);
		$expected = 49;
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$result = mb_strlen($string);
		$expected = 15;
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$result = mb_strlen($string);
		$expected = 47;
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$result = mb_strlen($string);
		$expected = 96;
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$result = mb_strlen($string);
		$expected = 59;
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$result = mb_strlen($string);
		$expected = 100;
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$result = mb_strlen($string);
		$expected = 65;
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$result = mb_strlen($string);
		$expected = 76;
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$result = mb_strlen($string);
		$expected = 26;
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$result = mb_strlen($string);
		$expected = 24;
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$result = mb_strlen($string);
		$expected = 38;
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$result = mb_strlen($string);
		$expected = 13;
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$result = mb_strlen($string);
		$expected = 13;
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$result = mb_strlen($string);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$result = mb_strlen($string);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$result = mb_strlen($string);
		$expected = 7;
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$result = mb_strlen($string);
		$expected = 7;
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$result = mb_strlen($string);
		$expected = 6;
		$this->assertEquals($expected, $result);
	}

/**
 * testMultibyteStrlen method
 *
 * @return void
 */
	public function testMultibyteStrlen() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$result = Multibyte::strlen($string);
		$expected = 36;
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$result = Multibyte::strlen($string);
		$expected = 30;
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$result = Multibyte::strlen($string);
		$expected = 61;
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$result = Multibyte::strlen($string);
		$expected = 94;
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$result = Multibyte::strlen($string);
		$expected = 40;
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$result = Multibyte::strlen($string);
		$expected = 100;
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$result = Multibyte::strlen($string);
		$expected = 100;
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$result = Multibyte::strlen($string);
		$expected = 100;
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$result = Multibyte::strlen($string);
		$expected = 100;
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$result = Multibyte::strlen($string);
		$expected = 28;
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$result = Multibyte::strlen($string);
		$expected = 49;
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$result = Multibyte::strlen($string);
		$expected = 15;
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$result = Multibyte::strlen($string);
		$expected = 47;
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$result = Multibyte::strlen($string);
		$expected = 96;
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$result = Multibyte::strlen($string);
		$expected = 59;
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$result = Multibyte::strlen($string);
		$expected = 100;
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$result = Multibyte::strlen($string);
		$expected = 65;
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$result = Multibyte::strlen($string);
		$expected = 76;
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$result = Multibyte::strlen($string);
		$expected = 26;
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$result = Multibyte::strlen($string);
		$expected = 24;
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$result = Multibyte::strlen($string);
		$expected = 38;
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$result = Multibyte::strlen($string);
		$expected = 13;
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$result = Multibyte::strlen($string);
		$expected = 13;
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$result = Multibyte::strlen($string);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$result = Multibyte::strlen($string);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$result = Multibyte::strlen($string);
		$expected = 7;
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$result = Multibyte::strlen($string);
		$expected = 7;
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$result = Multibyte::strlen($string);
		$expected = 6;
		$this->assertEquals($expected, $result);
	}

/**
 * testUsingMbStrpos method
 *
 * @return void
 */
	public function testUsingMbStrpos() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = mb_strpos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ABCDEFGHIJKLMNOPQFRSTUVWXYZ0123456789';
		$find = 'F';
		$result = mb_strpos($string, $find, 6);
		$expected = 17;
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = mb_strpos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÅÙÚÛÜÝÞ';
		$find = 'Å';
		$result = mb_strpos($string, $find, 6);
		$expected = 24;
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_strpos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁĊŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_strpos($string, $find, 6);
		$expected = 32;
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = mb_strpos($string, $find);
		$expected = 37;
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = mb_strpos($string, $find);
		$expected = 20;
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'é';
		$result = mb_strpos($string, $find);
		$expected = 32;
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = mb_strpos($string, $find);
		$expected = 24;
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$find = 'Ƹ';
		$result = mb_strpos($string, $find);
		$expected = 39;
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$find = 'ƹ';
		$result = mb_strpos($string, $find);
		$expected = 40;
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = mb_strpos($string, $find);
		$expected = 39;
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = mb_strpos($string, $find);
		$expected = 7;
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = mb_strpos($string, $find);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'р';
		$result = mb_strpos($string, $find, 5);
		$expected = 36;
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = mb_strpos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = mb_strpos($string, $find);
		$expected = 15;
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = mb_strpos($string, $find);
		$expected = 16;
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = mb_strpos($string, $find);
		$expected = 31;
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = mb_strpos($string, $find);
		$expected = 26;
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = mb_strpos($string, $find);
		$expected = 46;
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = mb_strpos($string, $find);
		$expected = 45;
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = mb_strpos($string, $find);
		$expected = 10;
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = mb_strpos($string, $find);
		$expected = 10;
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = mb_strpos($string, $find);
		$expected = 16;
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = mb_strpos($string, $find);
		$expected = 17;
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = mb_strpos($string, $find);
		$expected = 8;
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = mb_strpos($string, $find);
		$expected = 8;
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'őř';
		$result = mb_strpos($string, $find);
		$expected = 8;
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'o';
		$result = mb_strpos($string, $find);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'o';
		$result = mb_strpos($string, $find, 5);
		$expected = 8;
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'n';
		$result = mb_strpos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'n';
		$result = mb_strpos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'ć';
		$result = mb_strpos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'ć';
		$result = mb_strpos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'ž';
		$result = mb_strpos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$find = '设';
		$result = mb_strpos($string, $find);
		$expected = 3;
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '周';
		$result = mb_strpos($string, $find);
		$expected = 3;
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '一周';
		$result = mb_strpos($string, $find);
		$expected = false;
		$this->assertEquals($expected, $result);
	}

/**
 * testMultibyteStrpos method
 *
 * @return void
 */
	public function testMultibyteStrpos() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = Multibyte::strpos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ABCDEFGHIJKLMNOPQFRSTUVWXYZ0123456789';
		$find = 'F';
		$result = Multibyte::strpos($string, $find, 6);
		$expected = 17;
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = Multibyte::strpos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÅÙÚÛÜÝÞ';
		$find = 'Å';
		$result = Multibyte::strpos($string, $find, 6);
		$expected = 24;
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::strpos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁĊŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::strpos($string, $find, 6);
		$expected = 32;
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = Multibyte::strpos($string, $find);
		$expected = 37;
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = Multibyte::strpos($string, $find);
		$expected = 20;
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'é';
		$result = Multibyte::strpos($string, $find);
		$expected = 32;
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = Multibyte::strpos($string, $find);
		$expected = 24;
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$find = 'Ƹ';
		$result = Multibyte::strpos($string, $find);
		$expected = 39;
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$find = 'ƹ';
		$result = Multibyte::strpos($string, $find);
		$expected = 40;
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = Multibyte::strpos($string, $find);
		$expected = 39;
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = Multibyte::strpos($string, $find);
		$expected = 7;
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = Multibyte::strpos($string, $find);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'р';
		$result = Multibyte::strpos($string, $find, 5);
		$expected = 36;
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = Multibyte::strpos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = Multibyte::strpos($string, $find);
		$expected = 15;
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = Multibyte::strpos($string, $find);
		$expected = 16;
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = Multibyte::strpos($string, $find);
		$expected = 31;
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = Multibyte::strpos($string, $find);
		$expected = 26;
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = Multibyte::strpos($string, $find);
		$expected = 46;
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = Multibyte::strpos($string, $find);
		$expected = 45;
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = Multibyte::strpos($string, $find);
		$expected = 10;
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = Multibyte::strpos($string, $find);
		$expected = 10;
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = Multibyte::strpos($string, $find);
		$expected = 16;
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = Multibyte::strpos($string, $find);
		$expected = 17;
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = Multibyte::strpos($string, $find);
		$expected = 8;
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = Multibyte::strpos($string, $find);
		$expected = 8;
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'őř';
		$result = Multibyte::strpos($string, $find);
		$expected = 8;
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'o';
		$result = Multibyte::strpos($string, $find);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'o';
		$result = Multibyte::strpos($string, $find, 5);
		$expected = 8;
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'n';
		$result = Multibyte::strpos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'n';
		$result = Multibyte::strpos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'ć';
		$result = Multibyte::strpos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'ć';
		$result = Multibyte::strpos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'ž';
		$result = Multibyte::strpos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$find = '设';
		$result = Multibyte::strpos($string, $find);
		$expected = 3;
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '周';
		$result = Multibyte::strpos($string, $find);
		$expected = 3;
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '一周';
		$result = Multibyte::strpos($string, $find);
		$expected = false;
		$this->assertEquals($expected, $result);
	}

/**
 * testUsingMbStrrchr method
 *
 * @return void
 */
	public function testUsingMbStrrchr() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = mb_strrchr($string, $find);
		$expected = 'FGHIJKLMNOPQRSTUVWXYZ0123456789';
		$this->assertEquals($expected, $result);

		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = mb_strrchr($string, $find, true);
		$expected = 'ABCDE';
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = mb_strrchr($string, $find);
		$expected = 'ÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = mb_strrchr($string, $find, true);
		$expected = 'ÀÁÂÃÄ';
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_strrchr($string, $find);
		$expected = 'ĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_strrchr($string, $find, true);
		$expected = 'ĀĂĄĆĈ';
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = mb_strrchr($string, $find);
		$expected = 'FGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = mb_strrchr($string, $find, true);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDE';
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = mb_strrchr($string, $find);
		$expected = 'µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = mb_strrchr($string, $find, true);
		$expected = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´';
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'Þ';
		$result = mb_strrchr($string, $find);
		$expected = 'Þßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'Þ';
		$result = mb_strrchr($string, $find, true);
		$expected = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝ';
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = mb_strrchr($string, $find);
		$expected = 'ŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = mb_strrchr($string, $find, true);
		$expected = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃń';
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$find = 'Ƹ';
		$result = mb_strrchr($string, $find);
		$expected = 'ƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$this->assertEquals($expected, $result);

		$find = 'Ƹ';
		$result = mb_strrchr($string, $find, true);
		$expected = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷ';
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = mb_strrchr($string, $find);
		$expected = 'ʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = mb_strrchr($string, $find, true);
		$expected = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿ';
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = mb_strrchr($string, $find);
		$expected = 'ЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = mb_strrchr($string, $find, true);
		$expected = 'ЀЁЂЃЄЅІ';
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = mb_strrchr($string, $find);
		$expected = 'РСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = mb_strrchr($string, $find, true);
		$expected = 'МНОП';
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = mb_strrchr($string, $find);
		$expected = 'نهوىيًٌٍَُ';
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = mb_strrchr($string, $find, true);
		$expected = 'فقكلم';
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = mb_strrchr($string, $find);
		$expected = '✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = mb_strrchr($string, $find, true);
		$expected = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾';
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = mb_strrchr($string, $find);
		$expected = '⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = mb_strrchr($string, $find, true);
		$expected = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏';
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = mb_strrchr($string, $find);
		$expected = '⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = mb_strrchr($string, $find, true);
		$expected = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣';
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = mb_strrchr($string, $find);
		$expected = '눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = mb_strrchr($string, $find, true);
		$expected = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺';
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = mb_strrchr($string, $find);
		$expected = 'ﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = mb_strrchr($string, $find, true);
		$expected = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝ';
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = mb_strrchr($string, $find);
		$expected = 'ﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = mb_strrchr($string, $find, true);
		$expected = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝ';
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = mb_strrchr($string, $find);
		$expected = 'ｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = mb_strrchr($string, $find, true);
		$expected = 'ａｂｃｄｅｆｇｈｉｊ';
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = mb_strrchr($string, $find);
		$expected = 'ｱｲｳｴｵｶｷｸ';
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = mb_strrchr($string, $find, true);
		$expected = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰ';
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = mb_strrchr($string, $find);
		$expected = 'ﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = mb_strrchr($string, $find, true);
		$expected = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉ';
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = mb_strrchr($string, $find);
		$expected = 'őřļď!';
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = mb_strrchr($string, $find, true);
		$expected = 'Ĥēĺļŏ, Ŵ';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'o';
		$result = mb_strrchr($string, $find);
		$expected = 'orld!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'o';
		$result = mb_strrchr($string, $find, true);
		$expected = 'Hello, W';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = mb_strrchr($string, $find);
		$expected = 'World!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = mb_strrchr($string, $find, true);
		$expected = 'Hello, ';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'll';
		$result = mb_strrchr($string, $find);
		$expected = 'llo, World!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'll';
		$result = mb_strrchr($string, $find, true);
		$expected = 'He';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = mb_strrchr($string, $find);
		$expected = 'rld!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = mb_strrchr($string, $find, true);
		$expected = 'Hello, Wo';
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'n';
		$result = mb_strrchr($string, $find);
		$expected = 'ni';
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'n';
		$result = mb_strrchr($string, $find, true);
		$expected = 'či';
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'ć';
		$result = mb_strrchr($string, $find);
		$expected = 'ći';
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'ć';
		$result = mb_strrchr($string, $find, true);
		$expected = 'mo';
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'ž';
		$result = mb_strrchr($string, $find);
		$expected = 'žavni';
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'ž';
		$result = mb_strrchr($string, $find, true);
		$expected = 'dr';
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$find = '设';
		$result = mb_strrchr($string, $find);
		$expected = '设为首页';
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$find = '设';
		$result = mb_strrchr($string, $find, true);
		$expected = '把百度';
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '周';
		$result = mb_strrchr($string, $find);
		$expected = '周永龍';
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '周';
		$result = mb_strrchr($string, $find, true);
		$expected = '一二三';
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '周龍';
		$result = mb_strrchr($string, $find, true);
		$expected = false;
		$this->assertEquals($expected, $result);
	}

/**
 * testMultibyteStrrchr method
 *
 * @return void
 */
	public function testMultibyteStrrchr() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'FGHIJKLMNOPQRSTUVWXYZ0123456789';
		$this->assertEquals($expected, $result);

		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'ABCDE';
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'ÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'ÀÁÂÃÄ';
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'ĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'ĀĂĄĆĈ';
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'FGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDE';
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´';
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'Þ';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'Þßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'Þ';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝ';
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'ŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃń';
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$find = 'Ƹ';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'ƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$this->assertEquals($expected, $result);

		$find = 'Ƹ';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷ';
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'ʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿ';
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'ЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'ЀЁЂЃЄЅІ';
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'РСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'МНОП';
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'نهوىيًٌٍَُ';
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'فقكلم';
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = Multibyte::strrchr($string, $find);
		$expected = '✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾';
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = Multibyte::strrchr($string, $find);
		$expected = '⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏';
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = Multibyte::strrchr($string, $find);
		$expected = '⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣';
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = Multibyte::strrchr($string, $find);
		$expected = '눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺';
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'ﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝ';
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'ﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝ';
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'ｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'ａｂｃｄｅｆｇｈｉｊ';
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'ｱｲｳｴｵｶｷｸ';
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰ';
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'ﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉ';
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'őřļď!';
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'Ĥēĺļŏ, Ŵ';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'o';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'orld!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'o';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'Hello, W';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'World!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'Hello, ';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'll';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'llo, World!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'll';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'He';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'rld!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'Hello, Wo';
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'n';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'ni';
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'n';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'či';
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'ć';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'ći';
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'ć';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'mo';
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'ž';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'žavni';
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'ž';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'dr';
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$find = '设';
		$result = Multibyte::strrchr($string, $find);
		$expected = '设为首页';
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$find = '设';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = '把百度';
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '周';
		$result = Multibyte::strrchr($string, $find);
		$expected = '周永龍';
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '周';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = '一二三';
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '周龍';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = false;
		$this->assertEquals($expected, $result);
	}

/**
 * testUsingMbStrrichr method
 *
 * @return void
 */
	public function testUsingMbStrrichr() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = mb_strrichr($string, $find);
		$expected = 'FGHIJKLMNOPQRSTUVWXYZ0123456789';
		$this->assertEquals($expected, $result);

		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = mb_strrichr($string, $find, true);
		$expected = 'ABCDE';
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = mb_strrichr($string, $find);
		$expected = 'ÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = mb_strrichr($string, $find, true);
		$expected = 'ÀÁÂÃÄ';
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_strrichr($string, $find);
		$expected = 'ĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_strrichr($string, $find, true);
		$expected = 'ĀĂĄĆĈ';
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = mb_strrichr($string, $find);
		$expected = 'fghijklmnopqrstuvwxyz{|}~';
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = mb_strrichr($string, $find, true);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcde';
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = mb_strrichr($string, $find);
		$expected = 'µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = mb_strrichr($string, $find, true);
		$expected = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´';
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'Þ';
		$result = mb_strrichr($string, $find);
		$expected = 'þÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'Þ';
		$result = mb_strrichr($string, $find, true);
		$expected = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüý';
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = mb_strrichr($string, $find);
		$expected = 'ņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = mb_strrichr($string, $find, true);
		$expected = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅ';
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$find = 'Ƹ';
		$result = mb_strrichr($string, $find);
		$expected = 'ƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$this->assertEquals($expected, $result);

		$find = 'Ƹ';
		$result = mb_strrichr($string, $find, true);
		$expected = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸ';
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = mb_strrichr($string, $find);
		$expected = 'ʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = mb_strrichr($string, $find, true);
		$expected = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿ';
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = mb_strrichr($string, $find);
		$expected = 'ЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = mb_strrichr($string, $find, true);
		$expected = 'ЀЁЂЃЄЅІ';
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = mb_strrichr($string, $find);
		$expected = 'рстуфхцчшщъыь';
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмноп';
		$find = 'Р';
		$result = mb_strrichr($string, $find, true);
		$expected = 'МНОП';
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = mb_strrichr($string, $find);
		$expected = 'نهوىيًٌٍَُ';
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = mb_strrichr($string, $find, true);
		$expected = 'فقكلم';
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = mb_strrichr($string, $find);
		$expected = '✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = mb_strrichr($string, $find, true);
		$expected = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾';
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = mb_strrichr($string, $find);
		$expected = '⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = mb_strrichr($string, $find, true);
		$expected = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏';
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = mb_strrichr($string, $find);
		$expected = '⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = mb_strrichr($string, $find, true);
		$expected = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣';
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = mb_strrichr($string, $find);
		$expected = '눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = mb_strrichr($string, $find, true);
		$expected = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺';
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = mb_strrichr($string, $find);
		$expected = 'ﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = mb_strrichr($string, $find, true);
		$expected = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝ';
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = mb_strrichr($string, $find);
		$expected = 'ﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = mb_strrichr($string, $find, true);
		$expected = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝ';
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = mb_strrichr($string, $find);
		$expected = 'ｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = mb_strrichr($string, $find, true);
		$expected = 'ａｂｃｄｅｆｇｈｉｊ';
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = mb_strrichr($string, $find);
		$expected = 'ｱｲｳｴｵｶｷｸ';
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = mb_strrichr($string, $find, true);
		$expected = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰ';
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = mb_strrichr($string, $find);
		$expected = 'ﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = mb_strrichr($string, $find, true);
		$expected = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉ';
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = mb_strrichr($string, $find);
		$expected = 'őřļď!';
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = mb_strrichr($string, $find, true);
		$expected = 'Ĥēĺļŏ, Ŵ';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'o';
		$result = mb_strrichr($string, $find);
		$expected = 'orld!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'o';
		$result = mb_strrichr($string, $find, true);
		$expected = 'Hello, W';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = mb_strrichr($string, $find);
		$expected = 'World!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = mb_strrichr($string, $find, true);
		$expected = 'Hello, ';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'll';
		$result = mb_strrichr($string, $find);
		$expected = 'llo, World!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'll';
		$result = mb_strrichr($string, $find, true);
		$expected = 'He';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = mb_strrichr($string, $find);
		$expected = 'rld!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = mb_strrichr($string, $find, true);
		$expected = 'Hello, Wo';
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'n';
		$result = mb_strrichr($string, $find);
		$expected = 'ni';
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'n';
		$result = mb_strrichr($string, $find, true);
		$expected = 'či';
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'ć';
		$result = mb_strrichr($string, $find);
		$expected = 'ći';
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'ć';
		$result = mb_strrichr($string, $find, true);
		$expected = 'mo';
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'ž';
		$result = mb_strrichr($string, $find);
		$expected = 'žavni';
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'ž';
		$result = mb_strrichr($string, $find, true);
		$expected = 'dr';
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$find = '设';
		$result = mb_strrichr($string, $find);
		$expected = '设为首页';
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$find = '设';
		$result = mb_strrichr($string, $find, true);
		$expected = '把百度';
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '周';
		$result = mb_strrichr($string, $find);
		$expected = '周永龍';
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '周';
		$result = mb_strrichr($string, $find, true);
		$expected = '一二三';
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$find = '百设';
		$result = mb_strrichr($string, $find, true);
		$expected = false;
		$this->assertEquals($expected, $result);
	}

/**
 * testMultibyteStrrichr method
 *
 * @return void
 */
	public function testMultibyteStrrichr() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'FGHIJKLMNOPQRSTUVWXYZ0123456789';
		$this->assertEquals($expected, $result);

		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'ABCDE';
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'ÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'ÀÁÂÃÄ';
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'ĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'ĀĂĄĆĈ';
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'fghijklmnopqrstuvwxyz{|}~';
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcde';
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´';
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'Þ';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'þÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'Þ';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüý';
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'ņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅ';
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$find = 'Ƹ';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'ƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$this->assertEquals($expected, $result);

		$find = 'Ƹ';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸ';
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'ʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿ';
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'ЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'ЀЁЂЃЄЅІ';
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'рстуфхцчшщъыь';
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмноп';
		$find = 'Р';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'МНОП';
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'نهوىيًٌٍَُ';
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'فقكلم';
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = Multibyte::strrichr($string, $find);
		$expected = '✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾';
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = Multibyte::strrichr($string, $find);
		$expected = '⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏';
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = Multibyte::strrichr($string, $find);
		$expected = '⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣';
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = Multibyte::strrichr($string, $find);
		$expected = '눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺';
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'ﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝ';
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'ﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝ';
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'ｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'ａｂｃｄｅｆｇｈｉｊ';
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'ｱｲｳｴｵｶｷｸ';
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰ';
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'ﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉ';
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'őřļď!';
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'Ĥēĺļŏ, Ŵ';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'o';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'orld!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'o';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'Hello, W';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'World!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'Hello, ';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'll';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'llo, World!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'll';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'He';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'rld!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'Hello, Wo';
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'n';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'ni';
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'n';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'či';
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'ć';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'ći';
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'ć';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'mo';
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'ž';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'žavni';
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'ž';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'dr';
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$find = '设';
		$result = Multibyte::strrichr($string, $find);
		$expected = '设为首页';
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$find = '设';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = '把百度';
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '周';
		$result = Multibyte::strrichr($string, $find);
		$expected = '周永龍';
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '周';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = '一二三';
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$find = '百设';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = false;
		$this->assertEquals($expected, $result);
	}

/**
 * testUsingMbStrripos method
 *
 * @return void
 */
	public function testUsingMbStrripos() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = mb_strripos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ABCDEFGHIJKLMNOPQFRSTUVWXYZ0123456789';
		$find = 'F';
		$result = mb_strripos($string, $find, 6);
		$expected = 17;
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = mb_strripos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÅÙÚÛÜÝÞ';
		$find = 'Å';
		$result = mb_strripos($string, $find, 6);
		$expected = 24;
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÅÙÚÛÜÝÞ';
		$find = 'ÓÔ';
		$result = mb_strripos($string, $find);
		$expected = 19;
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_strripos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁĊŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_strripos($string, $find, 6);
		$expected = 32;
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = mb_strripos($string, $find);
		$expected = 69;
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = mb_strripos($string, $find);
		$expected = 20;
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'é';
		$result = mb_strripos($string, $find);
		$expected = 32;
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = mb_strripos($string, $find);
		$expected = 25;
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$find = 'Ƹ';
		$result = mb_strripos($string, $find);
		$expected = 40;
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$find = 'ƹ';
		$result = mb_strripos($string, $find);
		$expected = 40;
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = mb_strripos($string, $find);
		$expected = 39;
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = mb_strripos($string, $find);
		$expected = 7;
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = mb_strripos($string, $find);
		$expected = 36;
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'р';
		$result = mb_strripos($string, $find, 5);
		$expected = 36;
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = mb_strripos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = mb_strripos($string, $find);
		$expected = 15;
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = mb_strripos($string, $find);
		$expected = 16;
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = mb_strripos($string, $find);
		$expected = 31;
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = mb_strripos($string, $find);
		$expected = 26;
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = mb_strripos($string, $find);
		$expected = 46;
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = mb_strripos($string, $find);
		$expected = 45;
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = mb_strripos($string, $find);
		$expected = 10;
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = mb_strripos($string, $find);
		$expected = 10;
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｐｐ';
		$result = mb_strripos($string, $find);
		$expected = 15;
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = mb_strripos($string, $find);
		$expected = 16;
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = mb_strripos($string, $find);
		$expected = 17;
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = mb_strripos($string, $find);
		$expected = 8;
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = mb_strripos($string, $find);
		$expected = 8;
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'o';
		$result = mb_strripos($string, $find);
		$expected = 8;
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'o';
		$result = mb_strripos($string, $find, 5);
		$expected = 8;
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'n';
		$result = mb_strripos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'n';
		$result = mb_strripos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'ć';
		$result = mb_strripos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'ć';
		$result = mb_strripos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'ž';
		$result = mb_strripos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$find = '设';
		$result = mb_strripos($string, $find);
		$expected = 3;
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '周';
		$result = mb_strripos($string, $find);
		$expected = 3;
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'dž';
		$result = mb_strripos($string, $find);
		$this->assertFalse($result);
	}

/**
 * testMultibyteStrripos method
 *
 * @return void
 */
	public function testMultibyteStrripos() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = Multibyte::strripos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ABCDEFGHIJKLMNOPQFRSTUVWXYZ0123456789';
		$find = 'F';
		$result = Multibyte::strripos($string, $find, 6);
		$expected = 17;
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = Multibyte::strripos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÅÙÚÛÜÝÞ';
		$find = 'Å';
		$result = Multibyte::strripos($string, $find, 6);
		$expected = 24;
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÅÙÚÛÜÝÞ';
		$find = 'ÓÔ';
		$result = Multibyte::strripos($string, $find);
		$expected = 19;
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::strripos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁĊŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::strripos($string, $find, 6);
		$expected = 32;
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = Multibyte::strripos($string, $find);
		$expected = 69;
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = Multibyte::strripos($string, $find);
		$expected = 20;
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'é';
		$result = Multibyte::strripos($string, $find);
		$expected = 32;
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = Multibyte::strripos($string, $find);
		$expected = 25;
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$find = 'Ƹ';
		$result = Multibyte::strripos($string, $find);
		$expected = 40;
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$find = 'ƹ';
		$result = Multibyte::strripos($string, $find);
		$expected = 40;
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = Multibyte::strripos($string, $find);
		$expected = 39;
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = Multibyte::strripos($string, $find);
		$expected = 7;
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = Multibyte::strripos($string, $find);
		$expected = 36;
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'р';
		$result = Multibyte::strripos($string, $find, 5);
		$expected = 36;
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = Multibyte::strripos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = Multibyte::strripos($string, $find);
		$expected = 15;
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = Multibyte::strripos($string, $find);
		$expected = 16;
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = Multibyte::strripos($string, $find);
		$expected = 31;
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = Multibyte::strripos($string, $find);
		$expected = 26;
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = Multibyte::strripos($string, $find);
		$expected = 46;
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = Multibyte::strripos($string, $find);
		$expected = 45;
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = Multibyte::strripos($string, $find);
		$expected = 10;
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = Multibyte::strripos($string, $find);
		$expected = 10;
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｐｐ';
		$result = Multibyte::strripos($string, $find);
		$expected = 15;
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = Multibyte::strripos($string, $find);
		$expected = 16;
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = Multibyte::strripos($string, $find);
		$expected = 17;
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = Multibyte::strripos($string, $find);
		$expected = 8;
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = Multibyte::strripos($string, $find);
		$expected = 8;
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'o';
		$result = Multibyte::strripos($string, $find);
		$expected = 8;
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'o';
		$result = Multibyte::strripos($string, $find, 5);
		$expected = 8;
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'n';
		$result = Multibyte::strripos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'n';
		$result = Multibyte::strripos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'ć';
		$result = Multibyte::strripos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'ć';
		$result = Multibyte::strripos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'ž';
		$result = Multibyte::strripos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$find = '设';
		$result = Multibyte::strripos($string, $find);
		$expected = 3;
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '周';
		$result = Multibyte::strripos($string, $find);
		$expected = 3;
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'dž';
		$result = Multibyte::strripos($string, $find);
		$expected = 0;
		$this->assertEquals($expected, $result);
	}

/**
 * testUsingMbStrrpos method
 *
 * @return void
 */
	public function testUsingMbStrrpos() {
		$this->skipIf(extension_loaded('mbstring') && version_compare(PHP_VERSION, '5.2.0', '<'), 'PHP version does not support $offset parameter in mb_strrpos().');

		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = mb_strrpos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ABCDEFGHIJKLMNOPQFRSTUVWXYZ0123456789';
		$find = 'F';
		$result = mb_strrpos($string, $find, 6);
		$expected = 17;
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = mb_strrpos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÅÙÚÛÜÝÞ';
		$find = 'ÙÚ';
		$result = mb_strrpos($string, $find);
		$expected = 25;
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÅÙÚÛÜÝÞ';
		$find = 'Å';
		$result = mb_strrpos($string, $find, 6);
		$expected = 24;
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_strrpos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁĊŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_strrpos($string, $find, 6);
		$expected = 32;
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = mb_strrpos($string, $find);
		$expected = 37;
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = mb_strrpos($string, $find);
		$expected = 20;
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'é';
		$result = mb_strrpos($string, $find);
		$expected = 32;
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = mb_strrpos($string, $find);
		$expected = 24;
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$find = 'Ƹ';
		$result = mb_strrpos($string, $find);
		$expected = 39;
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$find = 'ƹ';
		$result = mb_strrpos($string, $find);
		$expected = 40;
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = mb_strrpos($string, $find);
		$expected = 39;
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = mb_strrpos($string, $find);
		$expected = 7;
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = mb_strrpos($string, $find);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'р';
		$result = mb_strrpos($string, $find, 5);
		$expected = 36;
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = mb_strrpos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = mb_strrpos($string, $find);
		$expected = 15;
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = mb_strrpos($string, $find);
		$expected = 16;
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = mb_strrpos($string, $find);
		$expected = 31;
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = mb_strrpos($string, $find);
		$expected = 26;
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = mb_strrpos($string, $find);
		$expected = 46;
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = mb_strrpos($string, $find);
		$expected = 45;
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = mb_strrpos($string, $find);
		$expected = 10;
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = mb_strrpos($string, $find);
		$expected = 10;
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｐｐ';
		$result = mb_strrpos($string, $find);
		$expected = 15;
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = mb_strrpos($string, $find);
		$expected = 16;
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = mb_strrpos($string, $find);
		$expected = 17;
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = mb_strrpos($string, $find);
		$expected = 8;
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = mb_strrpos($string, $find);
		$expected = 8;
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'o';
		$result = mb_strrpos($string, $find);
		$expected = 8;
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'o';
		$result = mb_strrpos($string, $find, 5);
		$expected = 8;
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'n';
		$result = mb_strrpos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'n';
		$result = mb_strrpos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'ć';
		$result = mb_strrpos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'ć';
		$result = mb_strrpos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'ž';
		$result = mb_strrpos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$find = '设';
		$result = mb_strrpos($string, $find);
		$expected = 3;
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '周';
		$result = mb_strrpos($string, $find);
		$expected = 3;
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'H';
		$result = mb_strrpos($string, $find);
		$expected = false;
		$this->assertEquals($expected, $result);
	}

/**
 * testMultibyteStrrpos method
 *
 * @return void
 */
	public function testMultibyteStrrpos() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = Multibyte::strrpos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ABCDEFGHIJKLMNOPQFRSTUVWXYZ0123456789';
		$find = 'F';
		$result = Multibyte::strrpos($string, $find, 6);
		$expected = 17;
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = Multibyte::strrpos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÅÙÚÛÜÝÞ';
		$find = 'Å';
		$result = Multibyte::strrpos($string, $find, 6);
		$expected = 24;
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÅÙÚÛÜÝÞ';
		$find = 'ÙÚ';
		$result = Multibyte::strrpos($string, $find);
		$expected = 25;
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::strrpos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁĊŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::strrpos($string, $find, 6);
		$expected = 32;
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = Multibyte::strrpos($string, $find);
		$expected = 37;
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = Multibyte::strrpos($string, $find);
		$expected = 20;
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'é';
		$result = Multibyte::strrpos($string, $find);
		$expected = 32;
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = Multibyte::strrpos($string, $find);
		$expected = 24;
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$find = 'Ƹ';
		$result = Multibyte::strrpos($string, $find);
		$expected = 39;
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$find = 'ƹ';
		$result = Multibyte::strrpos($string, $find);
		$expected = 40;
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = Multibyte::strrpos($string, $find);
		$expected = 39;
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = Multibyte::strrpos($string, $find);
		$expected = 7;
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = Multibyte::strrpos($string, $find);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'р';
		$result = Multibyte::strrpos($string, $find, 5);
		$expected = 36;
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = Multibyte::strrpos($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = Multibyte::strrpos($string, $find);
		$expected = 15;
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = Multibyte::strrpos($string, $find);
		$expected = 16;
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = Multibyte::strrpos($string, $find);
		$expected = 31;
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = Multibyte::strrpos($string, $find);
		$expected = 26;
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = Multibyte::strrpos($string, $find);
		$expected = 46;
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = Multibyte::strrpos($string, $find);
		$expected = 45;
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = Multibyte::strrpos($string, $find);
		$expected = 10;
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = Multibyte::strrpos($string, $find);
		$expected = 10;
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｐｐ';
		$result = Multibyte::strrpos($string, $find);
		$expected = 15;
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = Multibyte::strrpos($string, $find);
		$expected = 16;
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = Multibyte::strrpos($string, $find);
		$expected = 17;
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = Multibyte::strrpos($string, $find);
		$expected = 8;
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = Multibyte::strrpos($string, $find);
		$expected = 8;
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'o';
		$result = Multibyte::strrpos($string, $find);
		$expected = 8;
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'o';
		$result = Multibyte::strrpos($string, $find, 5);
		$expected = 8;
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'n';
		$result = Multibyte::strrpos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'n';
		$result = Multibyte::strrpos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'ć';
		$result = Multibyte::strrpos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'ć';
		$result = Multibyte::strrpos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'ž';
		$result = Multibyte::strrpos($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$find = '设';
		$result = Multibyte::strrpos($string, $find);
		$expected = 3;
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '周';
		$result = Multibyte::strrpos($string, $find);
		$expected = 3;
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'H';
		$result = Multibyte::strrpos($string, $find);
		$expected = false;
		$this->assertEquals($expected, $result);
	}

/**
 * testUsingMbStrstr method
 *
 * @return void
 */
	public function testUsingMbStrstr() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = mb_strstr($string, $find);
		$expected = 'FGHIJKLMNOPQRSTUVWXYZ0123456789';
		$this->assertEquals($expected, $result);

		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = mb_strstr($string, $find, true);
		$expected = 'ABCDE';
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = mb_strstr($string, $find);
		$expected = 'ÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = mb_strstr($string, $find, true);
		$expected = 'ÀÁÂÃÄ';
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_strstr($string, $find);
		$expected = 'ĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_strstr($string, $find, true);
		$expected = 'ĀĂĄĆĈ';
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = mb_strstr($string, $find);
		$expected = 'FGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = mb_strstr($string, $find, true);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDE';
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = mb_strstr($string, $find);
		$expected = 'µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = mb_strstr($string, $find, true);
		$expected = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´';
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'Þ';
		$result = mb_strstr($string, $find);
		$expected = 'Þßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'Þ';
		$result = mb_strstr($string, $find, true);
		$expected = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝ';
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = mb_strstr($string, $find);
		$expected = 'ŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = mb_strstr($string, $find, true);
		$expected = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃń';
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$find = 'Ƹ';
		$result = mb_strstr($string, $find);
		$expected = 'ƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$this->assertEquals($expected, $result);

		$find = 'Ƹ';
		$result = mb_strstr($string, $find, true);
		$expected = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷ';
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = mb_strstr($string, $find);
		$expected = 'ʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = mb_strstr($string, $find, true);
		$expected = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿ';
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = mb_strstr($string, $find);
		$expected = 'ЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = mb_strstr($string, $find, true);
		$expected = 'ЀЁЂЃЄЅІ';
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = mb_strstr($string, $find);
		$expected = 'РСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = mb_strstr($string, $find, true);
		$expected = 'МНОП';
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = mb_strstr($string, $find);
		$expected = 'نهوىيًٌٍَُ';
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = mb_strstr($string, $find, true);
		$expected = 'فقكلم';
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = mb_strstr($string, $find);
		$expected = '✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = mb_strstr($string, $find, true);
		$expected = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾';
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = mb_strstr($string, $find);
		$expected = '⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = mb_strstr($string, $find, true);
		$expected = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏';
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = mb_strstr($string, $find);
		$expected = '⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = mb_strstr($string, $find, true);
		$expected = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣';
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = mb_strstr($string, $find);
		$expected = '눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = mb_strstr($string, $find, true);
		$expected = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺';
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = mb_strstr($string, $find);
		$expected = 'ﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = mb_strstr($string, $find, true);
		$expected = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝ';
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = mb_strstr($string, $find);
		$expected = 'ﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = mb_strstr($string, $find, true);
		$expected = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝ';
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = mb_strstr($string, $find);
		$expected = 'ｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = mb_strstr($string, $find, true);
		$expected = 'ａｂｃｄｅｆｇｈｉｊ';
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'Ｋ';
		$result = mb_strstr($string, $find);
		$expected = false;
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = mb_strstr($string, $find);
		$expected = 'ｱｲｳｴｵｶｷｸ';
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = mb_strstr($string, $find, true);
		$expected = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰ';
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = mb_strstr($string, $find);
		$expected = 'ﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = mb_strstr($string, $find, true);
		$expected = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉ';
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = mb_strstr($string, $find);
		$expected = 'őřļď!';
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = mb_strstr($string, $find, true);
		$expected = 'Ĥēĺļŏ, Ŵ';
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ĺļ';
		$result = mb_strstr($string, $find, true);
		$expected = 'Ĥē';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'o';
		$result = mb_strstr($string, $find);
		$expected = 'o, World!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'o';
		$result = mb_strstr($string, $find, true);
		$expected = 'Hell';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = mb_strstr($string, $find);
		$expected = 'World!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = mb_strstr($string, $find, true);
		$expected = 'Hello, ';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'll';
		$result = mb_strstr($string, $find);
		$expected = 'llo, World!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'll';
		$result = mb_strstr($string, $find, true);
		$expected = 'He';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = mb_strstr($string, $find);
		$expected = 'rld!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = mb_strstr($string, $find, true);
		$expected = 'Hello, Wo';
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'n';
		$result = mb_strstr($string, $find);
		$expected = 'ni';
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'n';
		$result = mb_strstr($string, $find, true);
		$expected = 'či';
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'ć';
		$result = mb_strstr($string, $find);
		$expected = 'ći';
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'ć';
		$result = mb_strstr($string, $find, true);
		$expected = 'mo';
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'ž';
		$result = mb_strstr($string, $find);
		$expected = 'žavni';
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'ž';
		$result = mb_strstr($string, $find, true);
		$expected = 'dr';
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$find = '设';
		$result = mb_strstr($string, $find);
		$expected = '设为首页';
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$find = '设';
		$result = mb_strstr($string, $find, true);
		$expected = '把百度';
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '周';
		$result = mb_strstr($string, $find);
		$expected = '周永龍';
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '周';
		$result = mb_strstr($string, $find, true);
		$expected = '一二三';
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '二周';
		$result = mb_strstr($string, $find);
		$expected = false;
		$this->assertEquals($expected, $result);
	}

/**
 * testMultibyteStrstr method
 *
 * @return void
 */
	public function testMultibyteStrstr() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = Multibyte::strstr($string, $find);
		$expected = 'FGHIJKLMNOPQRSTUVWXYZ0123456789';
		$this->assertEquals($expected, $result);

		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'ABCDE';
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = Multibyte::strstr($string, $find);
		$expected = 'ÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'ÀÁÂÃÄ';
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::strstr($string, $find);
		$expected = 'ĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'ĀĂĄĆĈ';
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = Multibyte::strstr($string, $find);
		$expected = 'FGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = Multibyte::strstr($string, $find, true);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDE';
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = Multibyte::strstr($string, $find);
		$expected = 'µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = Multibyte::strstr($string, $find, true);
		$expected = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´';
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'Þ';
		$result = Multibyte::strstr($string, $find);
		$expected = 'Þßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'Þ';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝ';
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = Multibyte::strstr($string, $find);
		$expected = 'ŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃń';
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$find = 'Ƹ';
		$result = Multibyte::strstr($string, $find);
		$expected = 'ƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$this->assertEquals($expected, $result);

		$find = 'Ƹ';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷ';
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = Multibyte::strstr($string, $find);
		$expected = 'ʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿ';
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = Multibyte::strstr($string, $find);
		$expected = 'ЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'ЀЁЂЃЄЅІ';
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = Multibyte::strstr($string, $find);
		$expected = 'РСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'МНОП';
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = Multibyte::strstr($string, $find);
		$expected = 'نهوىيًٌٍَُ';
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'فقكلم';
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = Multibyte::strstr($string, $find);
		$expected = '✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = Multibyte::strstr($string, $find, true);
		$expected = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾';
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = Multibyte::strstr($string, $find);
		$expected = '⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = Multibyte::strstr($string, $find, true);
		$expected = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏';
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = Multibyte::strstr($string, $find);
		$expected = '⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = Multibyte::strstr($string, $find, true);
		$expected = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣';
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = Multibyte::strstr($string, $find);
		$expected = '눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = Multibyte::strstr($string, $find, true);
		$expected = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺';
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = Multibyte::strstr($string, $find);
		$expected = 'ﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝ';
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = Multibyte::strstr($string, $find);
		$expected = 'ﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝ';
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = Multibyte::strstr($string, $find);
		$expected = 'ｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'ａｂｃｄｅｆｇｈｉｊ';
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'Ｋ';
		$result = Multibyte::strstr($string, $find);
		$expected = false;
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = Multibyte::strstr($string, $find);
		$expected = 'ｱｲｳｴｵｶｷｸ';
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = Multibyte::strstr($string, $find, true);
		$expected = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰ';
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = Multibyte::strstr($string, $find);
		$expected = 'ﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉ';
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = Multibyte::strstr($string, $find);
		$expected = 'őřļď!';
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'Ĥēĺļŏ, Ŵ';
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ĺļ';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'Ĥē';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'o';
		$result = Multibyte::strstr($string, $find);
		$expected = 'o, World!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'o';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'Hell';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = Multibyte::strstr($string, $find);
		$expected = 'World!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'Hello, ';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'll';
		$result = Multibyte::strstr($string, $find);
		$expected = 'llo, World!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'll';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'He';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = Multibyte::strstr($string, $find);
		$expected = 'rld!';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'Hello, Wo';
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'n';
		$result = Multibyte::strstr($string, $find);
		$expected = 'ni';
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'n';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'či';
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'ć';
		$result = Multibyte::strstr($string, $find);
		$expected = 'ći';
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'ć';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'mo';
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'ž';
		$result = Multibyte::strstr($string, $find);
		$expected = 'žavni';
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'ž';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'dr';
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$find = '设';
		$result = Multibyte::strstr($string, $find);
		$expected = '设为首页';
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$find = '设';
		$result = Multibyte::strstr($string, $find, true);
		$expected = '把百度';
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '周';
		$result = Multibyte::strstr($string, $find);
		$expected = '周永龍';
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '周';
		$result = Multibyte::strstr($string, $find, true);
		$expected = '一二三';
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '二周';
		$result = Multibyte::strstr($string, $find);
		$expected = false;
		$this->assertEquals($expected, $result);
	}

/**
 * testUsingMbStrtolower method
 *
 * @return void
 */
	public function testUsingMbStrtolower() {
		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`ABCDEFGHIJKLMNOPQRSTUVWXYZ{|}~';
		$result = mb_strtolower($string);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@abcdefghijklmnopqrstuvwxyz[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@';
		$result = mb_strtolower($string);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@';
		$this->assertEquals($expected, $result);

		$string = 'À';
		$result = mb_strtolower($string);
		$expected = 'à';
		$this->assertEquals($expected, $result);

		$string = 'Á';
		$result = mb_strtolower($string);
		$expected = 'á';
		$this->assertEquals($expected, $result);

		$string = 'Â';
		$result = mb_strtolower($string);
		$expected = 'â';
		$this->assertEquals($expected, $result);

		$string = 'Ã';
		$result = mb_strtolower($string);
		$expected = 'ã';
		$this->assertEquals($expected, $result);

		$string = 'Ä';
		$result = mb_strtolower($string);
		$expected = 'ä';
		$this->assertEquals($expected, $result);

		$string = 'Å';
		$result = mb_strtolower($string);
		$expected = 'å';
		$this->assertEquals($expected, $result);

		$string = 'Æ';
		$result = mb_strtolower($string);
		$expected = 'æ';
		$this->assertEquals($expected, $result);

		$string = 'Ç';
		$result = mb_strtolower($string);
		$expected = 'ç';
		$this->assertEquals($expected, $result);

		$string = 'È';
		$result = mb_strtolower($string);
		$expected = 'è';
		$this->assertEquals($expected, $result);

		$string = 'É';
		$result = mb_strtolower($string);
		$expected = 'é';
		$this->assertEquals($expected, $result);

		$string = 'Ê';
		$result = mb_strtolower($string);
		$expected = 'ê';
		$this->assertEquals($expected, $result);

		$string = 'Ë';
		$result = mb_strtolower($string);
		$expected = 'ë';
		$this->assertEquals($expected, $result);

		$string = 'Ì';
		$result = mb_strtolower($string);
		$expected = 'ì';
		$this->assertEquals($expected, $result);

		$string = 'Í';
		$result = mb_strtolower($string);
		$expected = 'í';
		$this->assertEquals($expected, $result);

		$string = 'Î';
		$result = mb_strtolower($string);
		$expected = 'î';
		$this->assertEquals($expected, $result);

		$string = 'Ï';
		$result = mb_strtolower($string);
		$expected = 'ï';
		$this->assertEquals($expected, $result);

		$string = 'Ð';
		$result = mb_strtolower($string);
		$expected = 'ð';
		$this->assertEquals($expected, $result);

		$string = 'Ñ';
		$result = mb_strtolower($string);
		$expected = 'ñ';
		$this->assertEquals($expected, $result);

		$string = 'Ò';
		$result = mb_strtolower($string);
		$expected = 'ò';
		$this->assertEquals($expected, $result);

		$string = 'Ó';
		$result = mb_strtolower($string);
		$expected = 'ó';
		$this->assertEquals($expected, $result);

		$string = 'Ô';
		$result = mb_strtolower($string);
		$expected = 'ô';
		$this->assertEquals($expected, $result);

		$string = 'Õ';
		$result = mb_strtolower($string);
		$expected = 'õ';
		$this->assertEquals($expected, $result);

		$string = 'Ö';
		$result = mb_strtolower($string);
		$expected = 'ö';
		$this->assertEquals($expected, $result);

		$string = 'Ø';
		$result = mb_strtolower($string);
		$expected = 'ø';
		$this->assertEquals($expected, $result);

		$string = 'Ù';
		$result = mb_strtolower($string);
		$expected = 'ù';
		$this->assertEquals($expected, $result);

		$string = 'Ú';
		$result = mb_strtolower($string);
		$expected = 'ú';
		$this->assertEquals($expected, $result);

		$string = 'Û';
		$result = mb_strtolower($string);
		$expected = 'û';
		$this->assertEquals($expected, $result);

		$string = 'Ü';
		$result = mb_strtolower($string);
		$expected = 'ü';
		$this->assertEquals($expected, $result);

		$string = 'Ý';
		$result = mb_strtolower($string);
		$expected = 'ý';
		$this->assertEquals($expected, $result);

		$string = 'Þ';
		$result = mb_strtolower($string);
		$expected = 'þ';
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$result = mb_strtolower($string);
		$expected = 'àáâãäåæçèéêëìíîïðñòóôõöøùúûüýþ';
		$this->assertEquals($expected, $result);

		$string = 'Ā';
		$result = mb_strtolower($string);
		$expected = 'ā';
		$this->assertEquals($expected, $result);

		$string = 'Ă';
		$result = mb_strtolower($string);
		$expected = 'ă';
		$this->assertEquals($expected, $result);

		$string = 'Ą';
		$result = mb_strtolower($string);
		$expected = 'ą';
		$this->assertEquals($expected, $result);

		$string = 'Ć';
		$result = mb_strtolower($string);
		$expected = 'ć';
		$this->assertEquals($expected, $result);

		$string = 'Ĉ';
		$result = mb_strtolower($string);
		$expected = 'ĉ';
		$this->assertEquals($expected, $result);

		$string = 'Ċ';
		$result = mb_strtolower($string);
		$expected = 'ċ';
		$this->assertEquals($expected, $result);

		$string = 'Č';
		$result = mb_strtolower($string);
		$expected = 'č';
		$this->assertEquals($expected, $result);

		$string = 'Ď';
		$result = mb_strtolower($string);
		$expected = 'ď';
		$this->assertEquals($expected, $result);

		$string = 'Đ';
		$result = mb_strtolower($string);
		$expected = 'đ';
		$this->assertEquals($expected, $result);

		$string = 'Ē';
		$result = mb_strtolower($string);
		$expected = 'ē';
		$this->assertEquals($expected, $result);

		$string = 'Ĕ';
		$result = mb_strtolower($string);
		$expected = 'ĕ';
		$this->assertEquals($expected, $result);

		$string = 'Ė';
		$result = mb_strtolower($string);
		$expected = 'ė';
		$this->assertEquals($expected, $result);

		$string = 'Ę';
		$result = mb_strtolower($string);
		$expected = 'ę';
		$this->assertEquals($expected, $result);

		$string = 'Ě';
		$result = mb_strtolower($string);
		$expected = 'ě';
		$this->assertEquals($expected, $result);

		$string = 'Ĝ';
		$result = mb_strtolower($string);
		$expected = 'ĝ';
		$this->assertEquals($expected, $result);

		$string = 'Ğ';
		$result = mb_strtolower($string);
		$expected = 'ğ';
		$this->assertEquals($expected, $result);

		$string = 'Ġ';
		$result = mb_strtolower($string);
		$expected = 'ġ';
		$this->assertEquals($expected, $result);

		$string = 'Ģ';
		$result = mb_strtolower($string);
		$expected = 'ģ';
		$this->assertEquals($expected, $result);

		$string = 'Ĥ';
		$result = mb_strtolower($string);
		$expected = 'ĥ';
		$this->assertEquals($expected, $result);

		$string = 'Ħ';
		$result = mb_strtolower($string);
		$expected = 'ħ';
		$this->assertEquals($expected, $result);

		$string = 'Ĩ';
		$result = mb_strtolower($string);
		$expected = 'ĩ';
		$this->assertEquals($expected, $result);

		$string = 'Ī';
		$result = mb_strtolower($string);
		$expected = 'ī';
		$this->assertEquals($expected, $result);

		$string = 'Ĭ';
		$result = mb_strtolower($string);
		$expected = 'ĭ';
		$this->assertEquals($expected, $result);

		$string = 'Į';
		$result = mb_strtolower($string);
		$expected = 'į';
		$this->assertEquals($expected, $result);

		$string = 'Ĳ';
		$result = mb_strtolower($string);
		$expected = 'ĳ';
		$this->assertEquals($expected, $result);

		$string = 'Ĵ';
		$result = mb_strtolower($string);
		$expected = 'ĵ';
		$this->assertEquals($expected, $result);

		$string = 'Ķ';
		$result = mb_strtolower($string);
		$expected = 'ķ';
		$this->assertEquals($expected, $result);

		$string = 'Ĺ';
		$result = mb_strtolower($string);
		$expected = 'ĺ';
		$this->assertEquals($expected, $result);

		$string = 'Ļ';
		$result = mb_strtolower($string);
		$expected = 'ļ';
		$this->assertEquals($expected, $result);

		$string = 'Ľ';
		$result = mb_strtolower($string);
		$expected = 'ľ';
		$this->assertEquals($expected, $result);

		$string = 'Ŀ';
		$result = mb_strtolower($string);
		$expected = 'ŀ';
		$this->assertEquals($expected, $result);

		$string = 'Ł';
		$result = mb_strtolower($string);
		$expected = 'ł';
		$this->assertEquals($expected, $result);

		$string = 'Ń';
		$result = mb_strtolower($string);
		$expected = 'ń';
		$this->assertEquals($expected, $result);

		$string = 'Ņ';
		$result = mb_strtolower($string);
		$expected = 'ņ';
		$this->assertEquals($expected, $result);

		$string = 'Ň';
		$result = mb_strtolower($string);
		$expected = 'ň';
		$this->assertEquals($expected, $result);

		$string = 'Ŋ';
		$result = mb_strtolower($string);
		$expected = 'ŋ';
		$this->assertEquals($expected, $result);

		$string = 'Ō';
		$result = mb_strtolower($string);
		$expected = 'ō';
		$this->assertEquals($expected, $result);

		$string = 'Ŏ';
		$result = mb_strtolower($string);
		$expected = 'ŏ';
		$this->assertEquals($expected, $result);

		$string = 'Ő';
		$result = mb_strtolower($string);
		$expected = 'ő';
		$this->assertEquals($expected, $result);

		$string = 'Œ';
		$result = mb_strtolower($string);
		$expected = 'œ';
		$this->assertEquals($expected, $result);

		$string = 'Ŕ';
		$result = mb_strtolower($string);
		$expected = 'ŕ';
		$this->assertEquals($expected, $result);

		$string = 'Ŗ';
		$result = mb_strtolower($string);
		$expected = 'ŗ';
		$this->assertEquals($expected, $result);

		$string = 'Ř';
		$result = mb_strtolower($string);
		$expected = 'ř';
		$this->assertEquals($expected, $result);

		$string = 'Ś';
		$result = mb_strtolower($string);
		$expected = 'ś';
		$this->assertEquals($expected, $result);

		$string = 'Ŝ';
		$result = mb_strtolower($string);
		$expected = 'ŝ';
		$this->assertEquals($expected, $result);

		$string = 'Ş';
		$result = mb_strtolower($string);
		$expected = 'ş';
		$this->assertEquals($expected, $result);

		$string = 'Š';
		$result = mb_strtolower($string);
		$expected = 'š';
		$this->assertEquals($expected, $result);

		$string = 'Ţ';
		$result = mb_strtolower($string);
		$expected = 'ţ';
		$this->assertEquals($expected, $result);

		$string = 'Ť';
		$result = mb_strtolower($string);
		$expected = 'ť';
		$this->assertEquals($expected, $result);

		$string = 'Ŧ';
		$result = mb_strtolower($string);
		$expected = 'ŧ';
		$this->assertEquals($expected, $result);

		$string = 'Ũ';
		$result = mb_strtolower($string);
		$expected = 'ũ';
		$this->assertEquals($expected, $result);

		$string = 'Ū';
		$result = mb_strtolower($string);
		$expected = 'ū';
		$this->assertEquals($expected, $result);

		$string = 'Ŭ';
		$result = mb_strtolower($string);
		$expected = 'ŭ';
		$this->assertEquals($expected, $result);

		$string = 'Ů';
		$result = mb_strtolower($string);
		$expected = 'ů';
		$this->assertEquals($expected, $result);

		$string = 'Ű';
		$result = mb_strtolower($string);
		$expected = 'ű';
		$this->assertEquals($expected, $result);

		$string = 'Ų';
		$result = mb_strtolower($string);
		$expected = 'ų';
		$this->assertEquals($expected, $result);

		$string = 'Ŵ';
		$result = mb_strtolower($string);
		$expected = 'ŵ';
		$this->assertEquals($expected, $result);

		$string = 'Ŷ';
		$result = mb_strtolower($string);
		$expected = 'ŷ';
		$this->assertEquals($expected, $result);

		$string = 'Ź';
		$result = mb_strtolower($string);
		$expected = 'ź';
		$this->assertEquals($expected, $result);

		$string = 'Ż';
		$result = mb_strtolower($string);
		$expected = 'ż';
		$this->assertEquals($expected, $result);

		$string = 'Ž';
		$result = mb_strtolower($string);
		$expected = 'ž';
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$result = mb_strtolower($string);
		$expected = 'āăąćĉċčďđēĕėęěĝğġģĥħĩīĭįĳĵķĺļľŀłńņňŋōŏőœŕŗřśŝşšţťŧũūŭůűųŵŷźżž';
		$this->assertEquals($expected, $result);

		$string = 'ĤĒĹĻŎ, ŴŐŘĻĎ!';
		$result = mb_strtolower($string);
		$expected = 'ĥēĺļŏ, ŵőřļď!';
		$this->assertEquals($expected, $result);

		$string = 'ĥēĺļŏ, ŵőřļď!';
		$result = mb_strtolower($string);
		$expected = 'ĥēĺļŏ, ŵőřļď!';
		$this->assertEquals($expected, $result);

		$string = 'ἈΙ';
		$result = mb_strtolower($string);
		$expected = 'ἀι';
		$this->assertEquals($expected, $result);

		$string = 'ﬀﬁﬂﬃﬄﬅﬆﬓﬔﬕﬖﬗ';
		$result = mb_strtolower($string);
		$expected = 'ﬀﬁﬂﬃﬄﬅﬆﬓﬔﬕﬖﬗ';
		$this->assertEquals($expected, $result);
	}

/**
 * testMultibyteStrtolower method
 *
 * @return void
 */
	public function testMultibyteStrtolower() {
		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`ABCDEFGHIJKLMNOPQRSTUVWXYZ{|}~';
		$result = Multibyte::strtolower($string);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@abcdefghijklmnopqrstuvwxyz[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@';
		$result = Multibyte::strtolower($string);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@';
		$this->assertEquals($expected, $result);

		$string = 'À';
		$result = Multibyte::strtolower($string);
		$expected = 'à';
		$this->assertEquals($expected, $result);

		$string = 'Á';
		$result = Multibyte::strtolower($string);
		$expected = 'á';
		$this->assertEquals($expected, $result);

		$string = 'Â';
		$result = Multibyte::strtolower($string);
		$expected = 'â';
		$this->assertEquals($expected, $result);

		$string = 'Ã';
		$result = Multibyte::strtolower($string);
		$expected = 'ã';
		$this->assertEquals($expected, $result);

		$string = 'Ä';
		$result = Multibyte::strtolower($string);
		$expected = 'ä';
		$this->assertEquals($expected, $result);

		$string = 'Å';
		$result = Multibyte::strtolower($string);
		$expected = 'å';
		$this->assertEquals($expected, $result);

		$string = 'Æ';
		$result = Multibyte::strtolower($string);
		$expected = 'æ';
		$this->assertEquals($expected, $result);

		$string = 'Ç';
		$result = Multibyte::strtolower($string);
		$expected = 'ç';
		$this->assertEquals($expected, $result);

		$string = 'È';
		$result = Multibyte::strtolower($string);
		$expected = 'è';
		$this->assertEquals($expected, $result);

		$string = 'É';
		$result = Multibyte::strtolower($string);
		$expected = 'é';
		$this->assertEquals($expected, $result);

		$string = 'Ê';
		$result = Multibyte::strtolower($string);
		$expected = 'ê';
		$this->assertEquals($expected, $result);

		$string = 'Ë';
		$result = Multibyte::strtolower($string);
		$expected = 'ë';
		$this->assertEquals($expected, $result);

		$string = 'Ì';
		$result = Multibyte::strtolower($string);
		$expected = 'ì';
		$this->assertEquals($expected, $result);

		$string = 'Í';
		$result = Multibyte::strtolower($string);
		$expected = 'í';
		$this->assertEquals($expected, $result);

		$string = 'Î';
		$result = Multibyte::strtolower($string);
		$expected = 'î';
		$this->assertEquals($expected, $result);

		$string = 'Ï';
		$result = Multibyte::strtolower($string);
		$expected = 'ï';
		$this->assertEquals($expected, $result);

		$string = 'Ð';
		$result = Multibyte::strtolower($string);
		$expected = 'ð';
		$this->assertEquals($expected, $result);

		$string = 'Ñ';
		$result = Multibyte::strtolower($string);
		$expected = 'ñ';
		$this->assertEquals($expected, $result);

		$string = 'Ò';
		$result = Multibyte::strtolower($string);
		$expected = 'ò';
		$this->assertEquals($expected, $result);

		$string = 'Ó';
		$result = Multibyte::strtolower($string);
		$expected = 'ó';
		$this->assertEquals($expected, $result);

		$string = 'Ô';
		$result = Multibyte::strtolower($string);
		$expected = 'ô';
		$this->assertEquals($expected, $result);

		$string = 'Õ';
		$result = Multibyte::strtolower($string);
		$expected = 'õ';
		$this->assertEquals($expected, $result);

		$string = 'Ö';
		$result = Multibyte::strtolower($string);
		$expected = 'ö';
		$this->assertEquals($expected, $result);

		$string = 'Ø';
		$result = Multibyte::strtolower($string);
		$expected = 'ø';
		$this->assertEquals($expected, $result);

		$string = 'Ù';
		$result = Multibyte::strtolower($string);
		$expected = 'ù';
		$this->assertEquals($expected, $result);

		$string = 'Ú';
		$result = Multibyte::strtolower($string);
		$expected = 'ú';
		$this->assertEquals($expected, $result);

		$string = 'Û';
		$result = Multibyte::strtolower($string);
		$expected = 'û';
		$this->assertEquals($expected, $result);

		$string = 'Ü';
		$result = Multibyte::strtolower($string);
		$expected = 'ü';
		$this->assertEquals($expected, $result);

		$string = 'Ý';
		$result = Multibyte::strtolower($string);
		$expected = 'ý';
		$this->assertEquals($expected, $result);

		$string = 'Þ';
		$result = Multibyte::strtolower($string);
		$expected = 'þ';
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$result = Multibyte::strtolower($string);
		$expected = 'àáâãäåæçèéêëìíîïðñòóôõöøùúûüýþ';
		$this->assertEquals($expected, $result);

		$string = 'Ā';
		$result = Multibyte::strtolower($string);
		$expected = 'ā';
		$this->assertEquals($expected, $result);

		$string = 'Ă';
		$result = Multibyte::strtolower($string);
		$expected = 'ă';
		$this->assertEquals($expected, $result);

		$string = 'Ą';
		$result = Multibyte::strtolower($string);
		$expected = 'ą';
		$this->assertEquals($expected, $result);

		$string = 'Ć';
		$result = Multibyte::strtolower($string);
		$expected = 'ć';
		$this->assertEquals($expected, $result);

		$string = 'Ĉ';
		$result = Multibyte::strtolower($string);
		$expected = 'ĉ';
		$this->assertEquals($expected, $result);

		$string = 'Ċ';
		$result = Multibyte::strtolower($string);
		$expected = 'ċ';
		$this->assertEquals($expected, $result);

		$string = 'Č';
		$result = Multibyte::strtolower($string);
		$expected = 'č';
		$this->assertEquals($expected, $result);

		$string = 'Ď';
		$result = Multibyte::strtolower($string);
		$expected = 'ď';
		$this->assertEquals($expected, $result);

		$string = 'Đ';
		$result = Multibyte::strtolower($string);
		$expected = 'đ';
		$this->assertEquals($expected, $result);

		$string = 'Ē';
		$result = Multibyte::strtolower($string);
		$expected = 'ē';
		$this->assertEquals($expected, $result);

		$string = 'Ĕ';
		$result = Multibyte::strtolower($string);
		$expected = 'ĕ';
		$this->assertEquals($expected, $result);

		$string = 'Ė';
		$result = Multibyte::strtolower($string);
		$expected = 'ė';
		$this->assertEquals($expected, $result);

		$string = 'Ę';
		$result = Multibyte::strtolower($string);
		$expected = 'ę';
		$this->assertEquals($expected, $result);

		$string = 'Ě';
		$result = Multibyte::strtolower($string);
		$expected = 'ě';
		$this->assertEquals($expected, $result);

		$string = 'Ĝ';
		$result = Multibyte::strtolower($string);
		$expected = 'ĝ';
		$this->assertEquals($expected, $result);

		$string = 'Ğ';
		$result = Multibyte::strtolower($string);
		$expected = 'ğ';
		$this->assertEquals($expected, $result);

		$string = 'Ġ';
		$result = Multibyte::strtolower($string);
		$expected = 'ġ';
		$this->assertEquals($expected, $result);

		$string = 'Ģ';
		$result = Multibyte::strtolower($string);
		$expected = 'ģ';
		$this->assertEquals($expected, $result);

		$string = 'Ĥ';
		$result = Multibyte::strtolower($string);
		$expected = 'ĥ';
		$this->assertEquals($expected, $result);

		$string = 'Ħ';
		$result = Multibyte::strtolower($string);
		$expected = 'ħ';
		$this->assertEquals($expected, $result);

		$string = 'Ĩ';
		$result = Multibyte::strtolower($string);
		$expected = 'ĩ';
		$this->assertEquals($expected, $result);

		$string = 'Ī';
		$result = Multibyte::strtolower($string);
		$expected = 'ī';
		$this->assertEquals($expected, $result);

		$string = 'Ĭ';
		$result = Multibyte::strtolower($string);
		$expected = 'ĭ';
		$this->assertEquals($expected, $result);

		$string = 'Į';
		$result = Multibyte::strtolower($string);
		$expected = 'į';
		$this->assertEquals($expected, $result);

		$string = 'Ĳ';
		$result = Multibyte::strtolower($string);
		$expected = 'ĳ';
		$this->assertEquals($expected, $result);

		$string = 'Ĵ';
		$result = Multibyte::strtolower($string);
		$expected = 'ĵ';
		$this->assertEquals($expected, $result);

		$string = 'Ķ';
		$result = Multibyte::strtolower($string);
		$expected = 'ķ';
		$this->assertEquals($expected, $result);

		$string = 'Ĺ';
		$result = Multibyte::strtolower($string);
		$expected = 'ĺ';
		$this->assertEquals($expected, $result);

		$string = 'Ļ';
		$result = Multibyte::strtolower($string);
		$expected = 'ļ';
		$this->assertEquals($expected, $result);

		$string = 'Ľ';
		$result = Multibyte::strtolower($string);
		$expected = 'ľ';
		$this->assertEquals($expected, $result);

		$string = 'Ŀ';
		$result = Multibyte::strtolower($string);
		$expected = 'ŀ';
		$this->assertEquals($expected, $result);

		$string = 'Ł';
		$result = Multibyte::strtolower($string);
		$expected = 'ł';
		$this->assertEquals($expected, $result);

		$string = 'Ń';
		$result = Multibyte::strtolower($string);
		$expected = 'ń';
		$this->assertEquals($expected, $result);

		$string = 'Ņ';
		$result = Multibyte::strtolower($string);
		$expected = 'ņ';
		$this->assertEquals($expected, $result);

		$string = 'Ň';
		$result = Multibyte::strtolower($string);
		$expected = 'ň';
		$this->assertEquals($expected, $result);

		$string = 'Ŋ';
		$result = Multibyte::strtolower($string);
		$expected = 'ŋ';
		$this->assertEquals($expected, $result);

		$string = 'Ō';
		$result = Multibyte::strtolower($string);
		$expected = 'ō';
		$this->assertEquals($expected, $result);

		$string = 'Ŏ';
		$result = Multibyte::strtolower($string);
		$expected = 'ŏ';
		$this->assertEquals($expected, $result);

		$string = 'Ő';
		$result = Multibyte::strtolower($string);
		$expected = 'ő';
		$this->assertEquals($expected, $result);

		$string = 'Œ';
		$result = Multibyte::strtolower($string);
		$expected = 'œ';
		$this->assertEquals($expected, $result);

		$string = 'Ŕ';
		$result = Multibyte::strtolower($string);
		$expected = 'ŕ';
		$this->assertEquals($expected, $result);

		$string = 'Ŗ';
		$result = Multibyte::strtolower($string);
		$expected = 'ŗ';
		$this->assertEquals($expected, $result);

		$string = 'Ř';
		$result = Multibyte::strtolower($string);
		$expected = 'ř';
		$this->assertEquals($expected, $result);

		$string = 'Ś';
		$result = Multibyte::strtolower($string);
		$expected = 'ś';
		$this->assertEquals($expected, $result);

		$string = 'Ŝ';
		$result = Multibyte::strtolower($string);
		$expected = 'ŝ';
		$this->assertEquals($expected, $result);

		$string = 'Ş';
		$result = Multibyte::strtolower($string);
		$expected = 'ş';
		$this->assertEquals($expected, $result);

		$string = 'Š';
		$result = Multibyte::strtolower($string);
		$expected = 'š';
		$this->assertEquals($expected, $result);

		$string = 'Ţ';
		$result = Multibyte::strtolower($string);
		$expected = 'ţ';
		$this->assertEquals($expected, $result);

		$string = 'Ť';
		$result = Multibyte::strtolower($string);
		$expected = 'ť';
		$this->assertEquals($expected, $result);

		$string = 'Ŧ';
		$result = Multibyte::strtolower($string);
		$expected = 'ŧ';
		$this->assertEquals($expected, $result);

		$string = 'Ũ';
		$result = Multibyte::strtolower($string);
		$expected = 'ũ';
		$this->assertEquals($expected, $result);

		$string = 'Ū';
		$result = Multibyte::strtolower($string);
		$expected = 'ū';
		$this->assertEquals($expected, $result);

		$string = 'Ŭ';
		$result = Multibyte::strtolower($string);
		$expected = 'ŭ';
		$this->assertEquals($expected, $result);

		$string = 'Ů';
		$result = Multibyte::strtolower($string);
		$expected = 'ů';
		$this->assertEquals($expected, $result);

		$string = 'Ű';
		$result = Multibyte::strtolower($string);
		$expected = 'ű';
		$this->assertEquals($expected, $result);

		$string = 'Ų';
		$result = Multibyte::strtolower($string);
		$expected = 'ų';
		$this->assertEquals($expected, $result);

		$string = 'Ŵ';
		$result = Multibyte::strtolower($string);
		$expected = 'ŵ';
		$this->assertEquals($expected, $result);

		$string = 'Ŷ';
		$result = Multibyte::strtolower($string);
		$expected = 'ŷ';
		$this->assertEquals($expected, $result);

		$string = 'Ź';
		$result = Multibyte::strtolower($string);
		$expected = 'ź';
		$this->assertEquals($expected, $result);

		$string = 'Ż';
		$result = Multibyte::strtolower($string);
		$expected = 'ż';
		$this->assertEquals($expected, $result);

		$string = 'Ž';
		$result = Multibyte::strtolower($string);
		$expected = 'ž';
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$result = Multibyte::strtolower($string);
		$expected = 'āăąćĉċčďđēĕėęěĝğġģĥħĩīĭįĳĵķĺļľŀłńņňŋōŏőœŕŗřśŝşšţťŧũūŭůűųŵŷźżž';
		$this->assertEquals($expected, $result);

		$string = 'ĤĒĹĻŎ, ŴŐŘĻĎ!';
		$result = Multibyte::strtolower($string);
		$expected = 'ĥēĺļŏ, ŵőřļď!';
		$this->assertEquals($expected, $result);

		$string = 'ĥēĺļŏ, ŵőřļď!';
		$result = Multibyte::strtolower($string);
		$expected = 'ĥēĺļŏ, ŵőřļď!';
		$this->assertEquals($expected, $result);

		$string = 'ἈΙ';
		$result = Multibyte::strtolower($string);
		$expected = 'ἀι';
		$this->assertEquals($expected, $result);

		$string = 'ԀԂԄԆԈԊԌԎԐԒ';
		$result = Multibyte::strtolower($string);
		$expected = 'ԁԃԅԇԉԋԍԏԑԓ';
		$this->assertEquals($expected, $result);

		$string = 'ԱԲԳԴԵԶԷԸԹԺԻԼԽԾԿՀՁՂՃՄՅՆՇՈՉՊՋՌՍՎՏՐՑՒՓՔՕՖև';
		$result = Multibyte::strtolower($string);
		$expected = 'աբգդեզէըթժիլխծկհձղճմյնշոչպջռսվտրցւփքօֆև';
		$this->assertEquals($expected, $result);

		$string = 'ႠႡႢႣႤႥႦႧႨႩႪႫႬႭႮႯႰႱႲႳႴႵႶႷႸႹႺႻႼႽႾႿჀჁჂჃჄჅ';
		$result = Multibyte::strtolower($string);
		$expected = 'ႠႡႢႣႤႥႦႧႨႩႪႫႬႭႮႯႰႱႲႳႴႵႶႷႸႹႺႻႼႽႾႿჀჁჂჃჄჅ';
		$this->assertEquals($expected, $result);

		$string = 'ḀḂḄḆḈḊḌḎḐḒḔḖḘḚḜḞḠḢḤḦḨḪḬḮḰḲḴḶḸḺḼḾṀṂṄṆṈṊṌṎṐṒṔṖṘṚṜṞṠṢṤṦṨṪṬṮṰṲṴṶṸṺṼṾẀẂẄẆẈẊẌẎẐẒẔẖẗẘẙẚẠẢẤẦẨẪẬẮẰẲẴẶẸẺẼẾỀỂỄỆỈỊỌỎỐỒỔỖỘỚỜỞỠỢỤỦỨỪỬỮỰỲỴỶỸ';
		$result = Multibyte::strtolower($string);
		$expected = 'ḁḃḅḇḉḋḍḏḑḓḕḗḙḛḝḟḡḣḥḧḩḫḭḯḱḳḵḷḹḻḽḿṁṃṅṇṉṋṍṏṑṓṕṗṙṛṝṟṡṣṥṧṩṫṭṯṱṳṵṷṹṻṽṿẁẃẅẇẉẋẍẏẑẓẕẖẗẘẙẚạảấầẩẫậắằẳẵặẹẻẽếềểễệỉịọỏốồổỗộớờởỡợụủứừửữựỳỵỷỹ';
		$this->assertEquals($expected, $result);

		$string = 'ΩKÅℲ';
		$result = Multibyte::strtolower($string);
		$expected = 'ωkåⅎ';
		$this->assertEquals($expected, $result);

		$string = 'ΩKÅ';
		$result = Multibyte::strtolower($string);
		$expected = 'ωkå';
		$this->assertEquals($expected, $result);

		$string = 'ΩKÅ';
		$result = Multibyte::strtolower($string);
		$expected = 'ωkå';
		$this->assertEquals($expected, $result);

		$string = 'ⅠⅡⅢⅣⅤⅥⅦⅧⅨⅩⅪⅫⅬⅭⅮⅯↃ';
		$result = Multibyte::strtolower($string);
		$expected = 'ⅰⅱⅲⅳⅴⅵⅶⅷⅸⅹⅺⅻⅼⅽⅾⅿↄ';
		$this->assertEquals($expected, $result);

		$string = 'ⒶⒷⒸⒹⒺⒻⒼⒽⒾⒿⓀⓁⓂⓃⓄⓅⓆⓇⓈⓉⓊⓋⓌⓍⓎⓏ';
		$result = Multibyte::strtolower($string);
		$expected = 'ⓐⓑⓒⓓⓔⓕⓖⓗⓘⓙⓚⓛⓜⓝⓞⓟⓠⓡⓢⓣⓤⓥⓦⓧⓨⓩ';
		$this->assertEquals($expected, $result);

		$string = 'ⰀⰁⰂⰃⰄⰅⰆⰇⰈⰉⰊⰋⰌⰍⰎⰏⰐⰑⰒⰓⰔⰕⰖⰗⰘⰙⰚⰛⰜⰝⰞⰟⰠⰡⰢⰣⰤⰥⰦⰧⰨⰩⰪⰫⰬⰭⰮ';
		$result = Multibyte::strtolower($string);
		$expected = 'ⰰⰱⰲⰳⰴⰵⰶⰷⰸⰹⰺⰻⰼⰽⰾⰿⱀⱁⱂⱃⱄⱅⱆⱇⱈⱉⱊⱋⱌⱍⱎⱏⱐⱑⱒⱓⱔⱕⱖⱗⱘⱙⱚⱛⱜⱝⱞ';
		$this->assertEquals($expected, $result);

		$string = 'ⲀⲂⲄⲆⲈⲊⲌⲎⲐⲒⲔⲖⲘⲚⲜⲞⲠⲢⲤⲦⲨⲪⲬⲮⲰⲲⲴⲶⲸⲺⲼⲾⳀⳂⳄⳆⳈⳊⳌⳎⳐⳒⳔⳖⳘⳚⳜⳞⳠⳢ';
		$result = Multibyte::strtolower($string);
		$expected = 'ⲁⲃⲅⲇⲉⲋⲍⲏⲑⲓⲕⲗⲙⲛⲝⲟⲡⲣⲥⲧⲩⲫⲭⲯⲱⲳⲵⲷⲹⲻⲽⲿⳁⳃⳅⳇⳉⳋⳍⳏⳑⳓⳕⳗⳙⳛⳝⳟⳡⳣ';
		$this->assertEquals($expected, $result);

		$string = 'ﬀﬁﬂﬃﬄﬅﬆﬓﬔﬕﬖﬗ';
		$result = Multibyte::strtolower($string);
		$expected = 'ﬀﬁﬂﬃﬄﬅﬆﬓﬔﬕﬖﬗ';
		$this->assertEquals($expected, $result);
	}

/**
 * testUsingMbStrtoupper method
 *
 * @return void
 */
	public function testUsingMbStrtoupper() {
		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$result = mb_strtoupper($string);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`ABCDEFGHIJKLMNOPQRSTUVWXYZ{|}~';
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@';
		$result = mb_strtoupper($string);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@';
		$this->assertEquals($expected, $result);

		$string = 'à';
		$result = mb_strtoupper($string);
		$expected = 'À';
		$this->assertEquals($expected, $result);

		$string = 'á';
		$result = mb_strtoupper($string);
		$expected = 'Á';
		$this->assertEquals($expected, $result);

		$string = 'â';
		$result = mb_strtoupper($string);
		$expected = 'Â';
		$this->assertEquals($expected, $result);

		$string = 'ã';
		$result = mb_strtoupper($string);
		$expected = 'Ã';
		$this->assertEquals($expected, $result);

		$string = 'ä';
		$result = mb_strtoupper($string);
		$expected = 'Ä';
		$this->assertEquals($expected, $result);

		$string = 'å';
		$result = mb_strtoupper($string);
		$expected = 'Å';
		$this->assertEquals($expected, $result);

		$string = 'æ';
		$result = mb_strtoupper($string);
		$expected = 'Æ';
		$this->assertEquals($expected, $result);

		$string = 'ç';
		$result = mb_strtoupper($string);
		$expected = 'Ç';
		$this->assertEquals($expected, $result);

		$string = 'è';
		$result = mb_strtoupper($string);
		$expected = 'È';
		$this->assertEquals($expected, $result);

		$string = 'é';
		$result = mb_strtoupper($string);
		$expected = 'É';
		$this->assertEquals($expected, $result);

		$string = 'ê';
		$result = mb_strtoupper($string);
		$expected = 'Ê';
		$this->assertEquals($expected, $result);

		$string = 'ë';
		$result = mb_strtoupper($string);
		$expected = 'Ë';
		$this->assertEquals($expected, $result);

		$string = 'ì';
		$result = mb_strtoupper($string);
		$expected = 'Ì';
		$this->assertEquals($expected, $result);

		$string = 'í';
		$result = mb_strtoupper($string);
		$expected = 'Í';
		$this->assertEquals($expected, $result);

		$string = 'î';
		$result = mb_strtoupper($string);
		$expected = 'Î';
		$this->assertEquals($expected, $result);

		$string = 'ï';
		$result = mb_strtoupper($string);
		$expected = 'Ï';
		$this->assertEquals($expected, $result);

		$string = 'ð';
		$result = mb_strtoupper($string);
		$expected = 'Ð';
		$this->assertEquals($expected, $result);

		$string = 'ñ';
		$result = mb_strtoupper($string);
		$expected = 'Ñ';
		$this->assertEquals($expected, $result);

		$string = 'ò';
		$result = mb_strtoupper($string);
		$expected = 'Ò';
		$this->assertEquals($expected, $result);

		$string = 'ó';
		$result = mb_strtoupper($string);
		$expected = 'Ó';
		$this->assertEquals($expected, $result);

		$string = 'ô';
		$result = mb_strtoupper($string);
		$expected = 'Ô';
		$this->assertEquals($expected, $result);

		$string = 'õ';
		$result = mb_strtoupper($string);
		$expected = 'Õ';
		$this->assertEquals($expected, $result);

		$string = 'ö';
		$result = mb_strtoupper($string);
		$expected = 'Ö';
		$this->assertEquals($expected, $result);

		$string = 'ø';
		$result = mb_strtoupper($string);
		$expected = 'Ø';
		$this->assertEquals($expected, $result);

		$string = 'ù';
		$result = mb_strtoupper($string);
		$expected = 'Ù';
		$this->assertEquals($expected, $result);

		$string = 'ú';
		$result = mb_strtoupper($string);
		$expected = 'Ú';
		$this->assertEquals($expected, $result);

		$string = 'û';
		$result = mb_strtoupper($string);
		$expected = 'Û';
		$this->assertEquals($expected, $result);

		$string = 'ü';
		$result = mb_strtoupper($string);
		$expected = 'Ü';
		$this->assertEquals($expected, $result);

		$string = 'ý';
		$result = mb_strtoupper($string);
		$expected = 'Ý';
		$this->assertEquals($expected, $result);

		$string = 'þ';
		$result = mb_strtoupper($string);
		$expected = 'Þ';
		$this->assertEquals($expected, $result);

		$string = 'àáâãäåæçèéêëìíîïðñòóôõöøùúûüýþ';
		$result = mb_strtoupper($string);
		$expected = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$this->assertEquals($expected, $result);

		$string = 'ā';
		$result = mb_strtoupper($string);
		$expected = 'Ā';
		$this->assertEquals($expected, $result);

		$string = 'ă';
		$result = mb_strtoupper($string);
		$expected = 'Ă';
		$this->assertEquals($expected, $result);

		$string = 'ą';
		$result = mb_strtoupper($string);
		$expected = 'Ą';
		$this->assertEquals($expected, $result);

		$string = 'ć';
		$result = mb_strtoupper($string);
		$expected = 'Ć';
		$this->assertEquals($expected, $result);

		$string = 'ĉ';
		$result = mb_strtoupper($string);
		$expected = 'Ĉ';
		$this->assertEquals($expected, $result);

		$string = 'ċ';
		$result = mb_strtoupper($string);
		$expected = 'Ċ';
		$this->assertEquals($expected, $result);

		$string = 'č';
		$result = mb_strtoupper($string);
		$expected = 'Č';
		$this->assertEquals($expected, $result);

		$string = 'ď';
		$result = mb_strtoupper($string);
		$expected = 'Ď';
		$this->assertEquals($expected, $result);

		$string = 'đ';
		$result = mb_strtoupper($string);
		$expected = 'Đ';
		$this->assertEquals($expected, $result);

		$string = 'ē';
		$result = mb_strtoupper($string);
		$expected = 'Ē';
		$this->assertEquals($expected, $result);

		$string = 'ĕ';
		$result = mb_strtoupper($string);
		$expected = 'Ĕ';
		$this->assertEquals($expected, $result);

		$string = 'ė';
		$result = mb_strtoupper($string);
		$expected = 'Ė';
		$this->assertEquals($expected, $result);

		$string = 'ę';
		$result = mb_strtoupper($string);
		$expected = 'Ę';
		$this->assertEquals($expected, $result);

		$string = 'ě';
		$result = mb_strtoupper($string);
		$expected = 'Ě';
		$this->assertEquals($expected, $result);

		$string = 'ĝ';
		$result = mb_strtoupper($string);
		$expected = 'Ĝ';
		$this->assertEquals($expected, $result);

		$string = 'ğ';
		$result = mb_strtoupper($string);
		$expected = 'Ğ';
		$this->assertEquals($expected, $result);

		$string = 'ġ';
		$result = mb_strtoupper($string);
		$expected = 'Ġ';
		$this->assertEquals($expected, $result);

		$string = 'ģ';
		$result = mb_strtoupper($string);
		$expected = 'Ģ';
		$this->assertEquals($expected, $result);

		$string = 'ĥ';
		$result = mb_strtoupper($string);
		$expected = 'Ĥ';
		$this->assertEquals($expected, $result);

		$string = 'ħ';
		$result = mb_strtoupper($string);
		$expected = 'Ħ';
		$this->assertEquals($expected, $result);

		$string = 'ĩ';
		$result = mb_strtoupper($string);
		$expected = 'Ĩ';
		$this->assertEquals($expected, $result);

		$string = 'ī';
		$result = mb_strtoupper($string);
		$expected = 'Ī';
		$this->assertEquals($expected, $result);

		$string = 'ĭ';
		$result = mb_strtoupper($string);
		$expected = 'Ĭ';
		$this->assertEquals($expected, $result);

		$string = 'į';
		$result = mb_strtoupper($string);
		$expected = 'Į';
		$this->assertEquals($expected, $result);

		$string = 'ĳ';
		$result = mb_strtoupper($string);
		$expected = 'Ĳ';
		$this->assertEquals($expected, $result);

		$string = 'ĵ';
		$result = mb_strtoupper($string);
		$expected = 'Ĵ';
		$this->assertEquals($expected, $result);

		$string = 'ķ';
		$result = mb_strtoupper($string);
		$expected = 'Ķ';
		$this->assertEquals($expected, $result);

		$string = 'ĺ';
		$result = mb_strtoupper($string);
		$expected = 'Ĺ';
		$this->assertEquals($expected, $result);

		$string = 'ļ';
		$result = mb_strtoupper($string);
		$expected = 'Ļ';
		$this->assertEquals($expected, $result);

		$string = 'ľ';
		$result = mb_strtoupper($string);
		$expected = 'Ľ';
		$this->assertEquals($expected, $result);

		$string = 'ŀ';
		$result = mb_strtoupper($string);
		$expected = 'Ŀ';
		$this->assertEquals($expected, $result);

		$string = 'ł';
		$result = mb_strtoupper($string);
		$expected = 'Ł';
		$this->assertEquals($expected, $result);

		$string = 'ń';
		$result = mb_strtoupper($string);
		$expected = 'Ń';
		$this->assertEquals($expected, $result);

		$string = 'ņ';
		$result = mb_strtoupper($string);
		$expected = 'Ņ';
		$this->assertEquals($expected, $result);

		$string = 'ň';
		$result = mb_strtoupper($string);
		$expected = 'Ň';
		$this->assertEquals($expected, $result);

		$string = 'ŋ';
		$result = mb_strtoupper($string);
		$expected = 'Ŋ';
		$this->assertEquals($expected, $result);

		$string = 'ō';
		$result = mb_strtoupper($string);
		$expected = 'Ō';
		$this->assertEquals($expected, $result);

		$string = 'ŏ';
		$result = mb_strtoupper($string);
		$expected = 'Ŏ';
		$this->assertEquals($expected, $result);

		$string = 'ő';
		$result = mb_strtoupper($string);
		$expected = 'Ő';
		$this->assertEquals($expected, $result);

		$string = 'œ';
		$result = mb_strtoupper($string);
		$expected = 'Œ';
		$this->assertEquals($expected, $result);

		$string = 'ŕ';
		$result = mb_strtoupper($string);
		$expected = 'Ŕ';
		$this->assertEquals($expected, $result);

		$string = 'ŗ';
		$result = mb_strtoupper($string);
		$expected = 'Ŗ';
		$this->assertEquals($expected, $result);

		$string = 'ř';
		$result = mb_strtoupper($string);
		$expected = 'Ř';
		$this->assertEquals($expected, $result);

		$string = 'ś';
		$result = mb_strtoupper($string);
		$expected = 'Ś';
		$this->assertEquals($expected, $result);

		$string = 'ŝ';
		$result = mb_strtoupper($string);
		$expected = 'Ŝ';
		$this->assertEquals($expected, $result);

		$string = 'ş';
		$result = mb_strtoupper($string);
		$expected = 'Ş';
		$this->assertEquals($expected, $result);

		$string = 'š';
		$result = mb_strtoupper($string);
		$expected = 'Š';
		$this->assertEquals($expected, $result);

		$string = 'ţ';
		$result = mb_strtoupper($string);
		$expected = 'Ţ';
		$this->assertEquals($expected, $result);

		$string = 'ť';
		$result = mb_strtoupper($string);
		$expected = 'Ť';
		$this->assertEquals($expected, $result);

		$string = 'ŧ';
		$result = mb_strtoupper($string);
		$expected = 'Ŧ';
		$this->assertEquals($expected, $result);

		$string = 'ũ';
		$result = mb_strtoupper($string);
		$expected = 'Ũ';
		$this->assertEquals($expected, $result);

		$string = 'ū';
		$result = mb_strtoupper($string);
		$expected = 'Ū';
		$this->assertEquals($expected, $result);

		$string = 'ŭ';
		$result = mb_strtoupper($string);
		$expected = 'Ŭ';
		$this->assertEquals($expected, $result);

		$string = 'ů';
		$result = mb_strtoupper($string);
		$expected = 'Ů';
		$this->assertEquals($expected, $result);

		$string = 'ű';
		$result = mb_strtoupper($string);
		$expected = 'Ű';
		$this->assertEquals($expected, $result);

		$string = 'ų';
		$result = mb_strtoupper($string);
		$expected = 'Ų';
		$this->assertEquals($expected, $result);

		$string = 'ŵ';
		$result = mb_strtoupper($string);
		$expected = 'Ŵ';
		$this->assertEquals($expected, $result);

		$string = 'ŷ';
		$result = mb_strtoupper($string);
		$expected = 'Ŷ';
		$this->assertEquals($expected, $result);

		$string = 'ź';
		$result = mb_strtoupper($string);
		$expected = 'Ź';
		$this->assertEquals($expected, $result);

		$string = 'ż';
		$result = mb_strtoupper($string);
		$expected = 'Ż';
		$this->assertEquals($expected, $result);

		$string = 'ž';
		$result = mb_strtoupper($string);
		$expected = 'Ž';
		$this->assertEquals($expected, $result);

		$string = 'āăąćĉċčďđēĕėęěĝğġģĥħĩīĭįĳĵķĺļľŀłńņňŋōŏőœŕŗřśŝşšţťŧũūŭůűųŵŷźżž';
		$result = mb_strtoupper($string);
		$expected = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$result = mb_strtoupper($string);
		$expected = 'ĤĒĹĻŎ, ŴŐŘĻĎ!';
		$this->assertEquals($expected, $result);

		$string = 'ἀι';
		$result = mb_strtoupper($string);
		$expected = 'ἈΙ';
		$this->assertEquals($expected, $result);

		$string = 'ԁԃԅԇԉԋԍԏԐԒ';
		$result = mb_strtoupper($string);
		$expected = 'ԀԂԄԆԈԊԌԎԐԒ';
		$this->assertEquals($expected, $result);

		$string = 'ႠႡႢႣႤႥႦႧႨႩႪႫႬႭႮႯႰႱႲႳႴႵႶႷႸႹႺႻႼႽႾႿჀჁჂჃჄჅ';
		$result = mb_strtoupper($string);
		$expected = 'ႠႡႢႣႤႥႦႧႨႩႪႫႬႭႮႯႰႱႲႳႴႵႶႷႸႹႺႻႼႽႾႿჀჁჂჃჄჅ';
		$this->assertEquals($expected, $result);

		$string = 'ωkå';
		$result = mb_strtoupper($string);
		$expected = 'ΩKÅ';
		$this->assertEquals($expected, $result);
	}

/**
 * testUsingMbStrtoupperArmenian method
 *
 * @return void
 */
	public function testUsingMbStrtoupperArmenian() {
		if (extension_loaded('mbstring') && version_compare(PHP_VERSION, '7.3', '>=')) {
			$this->markTestSkipped('PHP7.3+ built-in function mb_strtoupper() behaves slightly different from Multibyte::strtoupper()');
		}

		$string = 'աբգդեզէըթժիլխծկհձղճմյնշոչպջռսվտրցւփքօֆև';
		$result = mb_strtoupper($string);
		$expected = 'ԱԲԳԴԵԶԷԸԹԺԻԼԽԾԿՀՁՂՃՄՅՆՇՈՉՊՋՌՍՎՏՐՑՒՓՔՕՖև';
		$this->assertEquals($expected, $result);
	}

/**
 * testUsingMbStrtoupperDiacritic method
 *
 * @return void
 */
	public function testUsingMbStrtoupperDiacritic() {
		if (extension_loaded('mbstring') && version_compare(PHP_VERSION, '7.3', '>=')) {
			$this->markTestSkipped('PHP7.3+ built-in function mb_strtoupper() behaves slightly different from Multibyte::strtoupper()');
		}

		$string = 'ḁḃḅḇḉḋḍḏḑḓḕḗḙḛḝḟḡḣḥḧḩḫḭḯḱḳḵḷḹḻḽḿṁṃṅṇṉṋṍṏṑṓṕṗṙṛṝṟṡṣṥṧṩṫṭṯṱṳṵṷṹṻṽṿẁẃẅẇẉẋẍẏẑẓẕẖẗẘẙẚạảấầẩẫậắằẳẵặẹẻẽếềểễệỉịọỏốồổỗộớờởỡợụủứừửữựỳỵỷỹ';
		$result = mb_strtoupper($string);
		$expected = 'ḀḂḄḆḈḊḌḎḐḒḔḖḘḚḜḞḠḢḤḦḨḪḬḮḰḲḴḶḸḺḼḾṀṂṄṆṈṊṌṎṐṒṔṖṘṚṜṞṠṢṤṦṨṪṬṮṰṲṴṶṸṺṼṾẀẂẄẆẈẊẌẎẐẒẔẖẗẘẙẚẠẢẤẦẨẪẬẮẰẲẴẶẸẺẼẾỀỂỄỆỈỊỌỎỐỒỔỖỘỚỜỞỠỢỤỦỨỪỬỮỰỲỴỶỸ';
		$this->assertEquals($expected, $result);
	}

/**
 * testUsingMbStrtoupperLigatures method
 *
 * @return void
 */
	public function testUsingMbStrtoupperLigatures() {
		if (extension_loaded('mbstring') && version_compare(PHP_VERSION, '7.3', '>=')) {
			$this->markTestSkipped('PHP7.3+ built-in function mb_strtoupper() behaves slightly different from Multibyte::strtoupper()');
		}

		$string = 'ﬀﬁﬂﬃﬄﬅﬆﬓﬔﬕﬖﬗ';
		$result = mb_strtoupper($string);
		$expected = 'ﬀﬁﬂﬃﬄﬅﬆﬓﬔﬕﬖﬗ';
		$this->assertEquals($expected, $result);
	}

/**
 * testMultibyteStrtoupper method
 *
 * @return void
 */
	public function testMultibyteStrtoupper() {
		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$result = Multibyte::strtoupper($string);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`ABCDEFGHIJKLMNOPQRSTUVWXYZ{|}~';
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@';
		$result = Multibyte::strtoupper($string);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@';
		$this->assertEquals($expected, $result);

		$string = 'à';
		$result = Multibyte::strtoupper($string);
		$expected = 'À';
		$this->assertEquals($expected, $result);

		$string = 'á';
		$result = Multibyte::strtoupper($string);
		$expected = 'Á';
		$this->assertEquals($expected, $result);

		$string = 'â';
		$result = Multibyte::strtoupper($string);
		$expected = 'Â';
		$this->assertEquals($expected, $result);

		$string = 'ã';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ã';
		$this->assertEquals($expected, $result);

		$string = 'ä';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ä';
		$this->assertEquals($expected, $result);

		$string = 'å';
		$result = Multibyte::strtoupper($string);
		$expected = 'Å';
		$this->assertEquals($expected, $result);

		$string = 'æ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Æ';
		$this->assertEquals($expected, $result);

		$string = 'ç';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ç';
		$this->assertEquals($expected, $result);

		$string = 'è';
		$result = Multibyte::strtoupper($string);
		$expected = 'È';
		$this->assertEquals($expected, $result);

		$string = 'é';
		$result = Multibyte::strtoupper($string);
		$expected = 'É';
		$this->assertEquals($expected, $result);

		$string = 'ê';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ê';
		$this->assertEquals($expected, $result);

		$string = 'ë';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ë';
		$this->assertEquals($expected, $result);

		$string = 'ì';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ì';
		$this->assertEquals($expected, $result);

		$string = 'í';
		$result = Multibyte::strtoupper($string);
		$expected = 'Í';
		$this->assertEquals($expected, $result);

		$string = 'î';
		$result = Multibyte::strtoupper($string);
		$expected = 'Î';
		$this->assertEquals($expected, $result);

		$string = 'ï';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ï';
		$this->assertEquals($expected, $result);

		$string = 'ð';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ð';
		$this->assertEquals($expected, $result);

		$string = 'ñ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ñ';
		$this->assertEquals($expected, $result);

		$string = 'ò';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ò';
		$this->assertEquals($expected, $result);

		$string = 'ó';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ó';
		$this->assertEquals($expected, $result);

		$string = 'ô';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ô';
		$this->assertEquals($expected, $result);

		$string = 'õ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Õ';
		$this->assertEquals($expected, $result);

		$string = 'ö';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ö';
		$this->assertEquals($expected, $result);

		$string = 'ø';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ø';
		$this->assertEquals($expected, $result);

		$string = 'ù';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ù';
		$this->assertEquals($expected, $result);

		$string = 'ú';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ú';
		$this->assertEquals($expected, $result);

		$string = 'û';
		$result = Multibyte::strtoupper($string);
		$expected = 'Û';
		$this->assertEquals($expected, $result);

		$string = 'ü';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ü';
		$this->assertEquals($expected, $result);

		$string = 'ý';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ý';
		$this->assertEquals($expected, $result);

		$string = 'þ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Þ';
		$this->assertEquals($expected, $result);

		$string = 'àáâãäåæçèéêëìíîïðñòóôõöøùúûüýþ';
		$result = Multibyte::strtoupper($string);
		$expected = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$this->assertEquals($expected, $result);

		$string = 'ā';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ā';
		$this->assertEquals($expected, $result);

		$string = 'ă';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ă';
		$this->assertEquals($expected, $result);

		$string = 'ą';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ą';
		$this->assertEquals($expected, $result);

		$string = 'ć';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ć';
		$this->assertEquals($expected, $result);

		$string = 'ĉ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ĉ';
		$this->assertEquals($expected, $result);

		$string = 'ċ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ċ';
		$this->assertEquals($expected, $result);

		$string = 'č';
		$result = Multibyte::strtoupper($string);
		$expected = 'Č';
		$this->assertEquals($expected, $result);

		$string = 'ď';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ď';
		$this->assertEquals($expected, $result);

		$string = 'đ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Đ';
		$this->assertEquals($expected, $result);

		$string = 'ē';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ē';
		$this->assertEquals($expected, $result);

		$string = 'ĕ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ĕ';
		$this->assertEquals($expected, $result);

		$string = 'ė';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ė';
		$this->assertEquals($expected, $result);

		$string = 'ę';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ę';
		$this->assertEquals($expected, $result);

		$string = 'ě';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ě';
		$this->assertEquals($expected, $result);

		$string = 'ĝ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ĝ';
		$this->assertEquals($expected, $result);

		$string = 'ğ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ğ';
		$this->assertEquals($expected, $result);

		$string = 'ġ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ġ';
		$this->assertEquals($expected, $result);

		$string = 'ģ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ģ';
		$this->assertEquals($expected, $result);

		$string = 'ĥ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ĥ';
		$this->assertEquals($expected, $result);

		$string = 'ħ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ħ';
		$this->assertEquals($expected, $result);

		$string = 'ĩ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ĩ';
		$this->assertEquals($expected, $result);

		$string = 'ī';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ī';
		$this->assertEquals($expected, $result);

		$string = 'ĭ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ĭ';
		$this->assertEquals($expected, $result);

		$string = 'į';
		$result = Multibyte::strtoupper($string);
		$expected = 'Į';
		$this->assertEquals($expected, $result);

		$string = 'ĳ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ĳ';
		$this->assertEquals($expected, $result);

		$string = 'ĵ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ĵ';
		$this->assertEquals($expected, $result);

		$string = 'ķ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ķ';
		$this->assertEquals($expected, $result);

		$string = 'ĺ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ĺ';
		$this->assertEquals($expected, $result);

		$string = 'ļ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ļ';
		$this->assertEquals($expected, $result);

		$string = 'ľ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ľ';
		$this->assertEquals($expected, $result);

		$string = 'ŀ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ŀ';
		$this->assertEquals($expected, $result);

		$string = 'ł';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ł';
		$this->assertEquals($expected, $result);

		$string = 'ń';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ń';
		$this->assertEquals($expected, $result);

		$string = 'ņ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ņ';
		$this->assertEquals($expected, $result);

		$string = 'ň';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ň';
		$this->assertEquals($expected, $result);

		$string = 'ŋ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ŋ';
		$this->assertEquals($expected, $result);

		$string = 'ō';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ō';
		$this->assertEquals($expected, $result);

		$string = 'ŏ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ŏ';
		$this->assertEquals($expected, $result);

		$string = 'ő';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ő';
		$this->assertEquals($expected, $result);

		$string = 'œ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Œ';
		$this->assertEquals($expected, $result);

		$string = 'ŕ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ŕ';
		$this->assertEquals($expected, $result);

		$string = 'ŗ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ŗ';
		$this->assertEquals($expected, $result);

		$string = 'ř';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ř';
		$this->assertEquals($expected, $result);

		$string = 'ś';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ś';
		$this->assertEquals($expected, $result);

		$string = 'ŝ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ŝ';
		$this->assertEquals($expected, $result);

		$string = 'ş';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ş';
		$this->assertEquals($expected, $result);

		$string = 'š';
		$result = Multibyte::strtoupper($string);
		$expected = 'Š';
		$this->assertEquals($expected, $result);

		$string = 'ţ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ţ';
		$this->assertEquals($expected, $result);

		$string = 'ť';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ť';
		$this->assertEquals($expected, $result);

		$string = 'ŧ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ŧ';
		$this->assertEquals($expected, $result);

		$string = 'ũ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ũ';
		$this->assertEquals($expected, $result);

		$string = 'ū';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ū';
		$this->assertEquals($expected, $result);

		$string = 'ŭ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ŭ';
		$this->assertEquals($expected, $result);

		$string = 'ů';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ů';
		$this->assertEquals($expected, $result);

		$string = 'ű';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ű';
		$this->assertEquals($expected, $result);

		$string = 'ų';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ų';
		$this->assertEquals($expected, $result);

		$string = 'ŵ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ŵ';
		$this->assertEquals($expected, $result);

		$string = 'ŷ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ŷ';
		$this->assertEquals($expected, $result);

		$string = 'ź';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ź';
		$this->assertEquals($expected, $result);

		$string = 'ż';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ż';
		$this->assertEquals($expected, $result);

		$string = 'ž';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ž';
		$this->assertEquals($expected, $result);

		$string = 'āăąćĉċčďđēĕėęěĝğġģĥħĩīĭįĳĵķĺļľŀłńņňŋōŏőœŕŗřśŝşšţťŧũūŭůűųŵŷźżž';
		$result = Multibyte::strtoupper($string);
		$expected = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$result = Multibyte::strtoupper($string);
		$expected = 'ĤĒĹĻŎ, ŴŐŘĻĎ!';
		$this->assertEquals($expected, $result);

		$string = 'ἀι';
		$result = mb_strtoupper($string);
		$expected = 'ἈΙ';
		$this->assertEquals($expected, $result);

		$string = 'ἀι';
		$result = Multibyte::strtoupper($string);
		$expected = 'ἈΙ';
		$this->assertEquals($expected, $result);

		$string = 'ԁԃԅԇԉԋԍԏԐԒ';
		$result = Multibyte::strtoupper($string);
		$expected = 'ԀԂԄԆԈԊԌԎԐԒ';
		$this->assertEquals($expected, $result);

		$string = 'աբգդեզէըթժիլխծկհձղճմյնշոչպջռսվտրցւփքօֆև';
		$result = Multibyte::strtoupper($string);
		$expected = 'ԱԲԳԴԵԶԷԸԹԺԻԼԽԾԿՀՁՂՃՄՅՆՇՈՉՊՋՌՍՎՏՐՑՒՓՔՕՖև';
		$this->assertEquals($expected, $result);

		$string = 'ႠႡႢႣႤႥႦႧႨႩႪႫႬႭႮႯႰႱႲႳႴႵႶႷႸႹႺႻႼႽႾႿჀჁჂჃჄჅ';
		$result = Multibyte::strtoupper($string);
		$expected = 'ႠႡႢႣႤႥႦႧႨႩႪႫႬႭႮႯႰႱႲႳႴႵႶႷႸႹႺႻႼႽႾႿჀჁჂჃჄჅ';
		$this->assertEquals($expected, $result);

		$string = 'ḁḃḅḇḉḋḍḏḑḓḕḗḙḛḝḟḡḣḥḧḩḫḭḯḱḳḵḷḹḻḽḿṁṃṅṇṉṋṍṏṑṓṕṗṙṛṝṟṡṣṥṧṩṫṭṯṱṳṵṷṹṻṽṿẁẃẅẇẉẋẍẏẑẓẕẖẗẘẙẚạảấầẩẫậắằẳẵặẹẻẽếềểễệỉịọỏốồổỗộớờởỡợụủứừửữựỳỵỷỹ';
		$result = Multibyte::strtoupper($string);
		$expected = 'ḀḂḄḆḈḊḌḎḐḒḔḖḘḚḜḞḠḢḤḦḨḪḬḮḰḲḴḶḸḺḼḾṀṂṄṆṈṊṌṎṐṒṔṖṘṚṜṞṠṢṤṦṨṪṬṮṰṲṴṶṸṺṼṾẀẂẄẆẈẊẌẎẐẒẔẖẗẘẙẚẠẢẤẦẨẪẬẮẰẲẴẶẸẺẼẾỀỂỄỆỈỊỌỎỐỒỔỖỘỚỜỞỠỢỤỦỨỪỬỮỰỲỴỶỸ';
		$this->assertEquals($expected, $result);

		$string = 'ωkåⅎ';
		$result = Multibyte::strtoupper($string);
		$expected = 'ΩKÅℲ';
		$this->assertEquals($expected, $result);

		$string = 'ωkå';
		$result = Multibyte::strtoupper($string);
		$expected = 'ΩKÅ';
		$this->assertEquals($expected, $result);

		$string = 'ⅰⅱⅲⅳⅴⅵⅶⅷⅸⅹⅺⅻⅼⅽⅾⅿↄ';
		$result = Multibyte::strtoupper($string);
		$expected = 'ⅠⅡⅢⅣⅤⅥⅦⅧⅨⅩⅪⅫⅬⅭⅮⅯↃ';
		$this->assertEquals($expected, $result);

		$string = 'ⓐⓑⓒⓓⓔⓕⓖⓗⓘⓙⓚⓛⓜⓝⓞⓟⓠⓡⓢⓣⓤⓥⓦⓧⓨⓩ';
		$result = Multibyte::strtoupper($string);
		$expected = 'ⒶⒷⒸⒹⒺⒻⒼⒽⒾⒿⓀⓁⓂⓃⓄⓅⓆⓇⓈⓉⓊⓋⓌⓍⓎⓏ';
		$this->assertEquals($expected, $result);

		$string = 'ⰰⰱⰲⰳⰴⰵⰶⰷⰸⰹⰺⰻⰼⰽⰾⰿⱀⱁⱂⱃⱄⱅⱆⱇⱈⱉⱊⱋⱌⱍⱎⱏⱐⱑⱒⱓⱔⱕⱖⱗⱘⱙⱚⱛⱜⱝⱞ';
		$result = Multibyte::strtoupper($string);
		$expected = 'ⰀⰁⰂⰃⰄⰅⰆⰇⰈⰉⰊⰋⰌⰍⰎⰏⰐⰑⰒⰓⰔⰕⰖⰗⰘⰙⰚⰛⰜⰝⰞⰟⰠⰡⰢⰣⰤⰥⰦⰧⰨⰩⰪⰫⰬⰭⰮ';
		$this->assertEquals($expected, $result);

		$string = 'ⲁⲃⲅⲇⲉⲋⲍⲏⲑⲓⲕⲗⲙⲛⲝⲟⲡⲣⲥⲧⲩⲫⲭⲯⲱⲳⲵⲷⲹⲻⲽⲿⳁⳃⳅⳇⳉⳋⳍⳏⳑⳓⳕⳗⳙⳛⳝⳟⳡⳣ';
		$result = Multibyte::strtoupper($string);
		$expected = 'ⲀⲂⲄⲆⲈⲊⲌⲎⲐⲒⲔⲖⲘⲚⲜⲞⲠⲢⲤⲦⲨⲪⲬⲮⲰⲲⲴⲶⲸⲺⲼⲾⳀⳂⳄⳆⳈⳊⳌⳎⳐⳒⳔⳖⳘⳚⳜⳞⳠⳢ';
		$this->assertEquals($expected, $result);

		$string = 'ﬀﬁﬂﬃﬄﬅﬆﬓﬔﬕﬖﬗ';
		$result = Multibyte::strtoupper($string);
		$expected = 'ﬀﬁﬂﬃﬄﬅﬆﬓﬔﬕﬖﬗ';
		$this->assertEquals($expected, $result);
	}

/**
 * testUsingMbSubstrCount method
 *
 * @return void
 */
	public function testUsingMbSubstrCount() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = mb_substr_count($string, $find);
		$expected = 1;
		$this->assertEquals($expected, $result);

		$string = 'ABCDEFGHIJKLMNOPQFRSFTUVWXYZ0F12345F6789';
		$find = 'F';
		$result = mb_substr_count($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÅÊËÌÍÎÏÐÑÒÓÔÅÕÖØÅÙÚÛÅÜÝÞ';
		$find = 'Å';
		$result = mb_substr_count($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÙÚÂÃÄÅÆÇÈÙÚÉÊËÌÍÎÏÐÑÒÓÔÕÖØÅÙÚÛÜÝÞÙÚ';
		$find = 'ÙÚ';
		$result = mb_substr_count($string, $find);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊÅËÌÍÎÏÐÑÒÓÔÕÅÖØÅÙÚÅÛÜÅÝÞÅ';
		$find = 'Å';
		$result = mb_substr_count($string, $find);
		$expected = 7;
		$this->assertEquals($expected, $result);

		$string = 'ĊĀĂĄĆĈĊČĎĐĒĔĖĊĘĚĜĞĠĢĤĦĨĪĬĮĊĲĴĶĹĻĽĿŁŃŅŇŊŌĊŎŐŒŔŖŘŚŜŞŠŢĊŤŦŨŪŬŮŰĊŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_substr_count($string, $find);
		$expected = 7;
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĊĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁĊŃŅĊŇŊŌŎŐŒŔŖĊŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_substr_count($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./012F34567F89:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghiFjklmnopqFrstuvwFxyz{|}~';
		$find = 'F';
		$result = mb_substr_count($string, $find);
		$expected = 6;
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥µ¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁµÂÃµÄÅÆÇµÈ';
		$find = 'µ';
		$result = mb_substr_count($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôÕÖõö÷øùúûüýþÿĀāĂăĄąĆćĈĉÕÖĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝÕÖĞğĠġĢģĤĥĦÕÖħĨĩĪīĬ';
		$find = 'ÕÖ';
		$result = mb_substr_count($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōĵĶķĸĹŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšĵĶķĸĹŢţŤťŦŧŨũŪūŬŭŮůŰűŲųĵĶķĸĹŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'ĵĶķĸĹ';
		$result = mb_substr_count($string, $find);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƸƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊƸǋǌǍǎǏǐǑǒǓƸǔǕǖǗǘǙǚƸǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$find = 'Ƹ';
		$result = mb_substr_count($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƹƠơƢƣƤƥƦƧƨƩƹƪƫƬƭƮƯưƱƲƳƴƹƵƶƷƸƹƺƻƼƽƾƿǀǁǂƹǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$find = 'ƹ';
		$result = mb_substr_count($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞʀɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʀʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʀʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʀʻʼ';
		$find = 'ʀ';
		$result = mb_substr_count($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЇЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = mb_substr_count($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСРТУФХЦЧШЩЪЫЬРЭЮЯабРвгдежзийклРмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = mb_substr_count($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСрТУФХЦЧШЩЪЫрЬЭЮЯабвгдежзийклмнопррстуфхцчшщъыь';
		$find = 'р';
		$result = mb_substr_count($string, $find);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = 'فنقكلنمنهونىينًٌٍَُ';
		$find = 'ن';
		$result = mb_substr_count($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✿✴✵✶✷✸✿✹✺✻✼✽✾✿❀❁❂❃❄❅❆✿❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = mb_substr_count($string, $find);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺐⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺐⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⺐⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = mb_substr_count($string, $find);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽤⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽤⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = mb_substr_count($string, $find);
		$expected = 3;
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눺눻눼눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕눺눻눼뉖뉗뉘뉙뉚뉛뉜뉝눺눻눼뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눺눻눼';
		$result = mb_substr_count($string, $find);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = 'ﺞﺟﺠﺡﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺞﺟﺠﺡﺆﺇﺞﺟﺠﺡﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞﺟﺠﺡ';
		$result = mb_substr_count($string, $find);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﻞﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻞﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻞﻸﻹﻺﻞﻻﻼ';
		$find = 'ﻞ';
		$result = mb_substr_count($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｋｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｋｙｚ';
		$find = 'ｋ';
		$result = mb_substr_count($string, $find);
		$expected = 3;
		$this->assertEquals($expected, $result);

		$string = 'ａｂｋｌｍｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｋｌｍｗｘｙｚ';
		$find = 'ｋｌｍ';
		$result = mb_substr_count($string, $find);
		$expected = 3;
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｐｐｅｆｇｈｉｊｋｌｍｎｏｐｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｐｐｅ';
		$result = mb_substr_count($string, $find);
		$expected = 1;
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = mb_substr_count($string, $find);
		$expected = 1;
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = mb_substr_count($string, $find);
		$expected = 1;
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = mb_substr_count($string, $find);
		$expected = 1;
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ĺļ';
		$result = mb_substr_count($string, $find);
		$expected = 1;
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'o';
		$result = mb_substr_count($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'rl';
		$result = mb_substr_count($string, $find);
		$expected = 1;
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'n';
		$result = mb_substr_count($string, $find);
		$expected = 1;
		$this->assertEquals($expected, $result);

		$string = 'ničiničiini';
		$find = 'n';
		$result = mb_substr_count($string, $find);
		$expected = 3;
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'ć';
		$result = mb_substr_count($string, $find);
		$expected = 1;
		$this->assertEquals($expected, $result);

		$string = 'moćimoćimoćmćioći';
		$find = 'ći';
		$result = mb_substr_count($string, $find);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'ž';
		$result = mb_substr_count($string, $find);
		$expected = 1;
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$find = '设';
		$result = mb_substr_count($string, $find);
		$expected = 1;
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '周';
		$result = mb_substr_count($string, $find);
		$expected = 1;
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'H';
		$result = mb_substr_count($string, $find);
		$expected = 0;
		$this->assertEquals($expected, $result);
	}

/**
 * testMultibyteSubstrCount method
 *
 * @return void
 */
	public function testMultibyteSubstrCount() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = Multibyte::substrCount($string, $find);
		$expected = 1;
		$this->assertEquals($expected, $result);

		$string = 'ABCDEFGHIJKLMNOPQFRSFTUVWXYZ0F12345F6789';
		$find = 'F';
		$result = Multibyte::substrCount($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÅÊËÌÍÎÏÐÑÒÓÔÅÕÖØÅÙÚÛÅÜÝÞ';
		$find = 'Å';
		$result = Multibyte::substrCount($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÙÚÂÃÄÅÆÇÈÙÚÉÊËÌÍÎÏÐÑÒÓÔÕÖØÅÙÚÛÜÝÞÙÚ';
		$find = 'ÙÚ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊÅËÌÍÎÏÐÑÒÓÔÕÅÖØÅÙÚÅÛÜÅÝÞÅ';
		$find = 'Å';
		$result = Multibyte::substrCount($string, $find);
		$expected = 7;
		$this->assertEquals($expected, $result);

		$string = 'ĊĀĂĄĆĈĊČĎĐĒĔĖĊĘĚĜĞĠĢĤĦĨĪĬĮĊĲĴĶĹĻĽĿŁŃŅŇŊŌĊŎŐŒŔŖŘŚŜŞŠŢĊŤŦŨŪŬŮŰĊŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 7;
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĊĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁĊŃŅĊŇŊŌŎŐŒŔŖĊŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./012F34567F89:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghiFjklmnopqFrstuvwFxyz{|}~';
		$find = 'F';
		$result = Multibyte::substrCount($string, $find);
		$expected = 6;
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥µ¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁµÂÃµÄÅÆÇµÈ';
		$find = 'µ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôÕÖõö÷øùúûüýþÿĀāĂăĄąĆćĈĉÕÖĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝÕÖĞğĠġĢģĤĥĦÕÖħĨĩĪīĬ';
		$find = 'ÕÖ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōĵĶķĸĹŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšĵĶķĸĹŢţŤťŦŧŨũŪūŬŭŮůŰűŲųĵĶķĸĹŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'ĵĶķĸĹ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƸƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊƸǋǌǍǎǏǐǑǒǓƸǔǕǖǗǘǙǚƸǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$find = 'Ƹ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƹƠơƢƣƤƥƦƧƨƩƹƪƫƬƭƮƯưƱƲƳƴƹƵƶƷƸƹƺƻƼƽƾƿǀǁǂƹǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$find = 'ƹ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞʀɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʀʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʀʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʀʻʼ';
		$find = 'ʀ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЇЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = Multibyte::substrCount($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСРТУФХЦЧШЩЪЫЬРЭЮЯабРвгдежзийклРмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = Multibyte::substrCount($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСрТУФХЦЧШЩЪЫрЬЭЮЯабвгдежзийклмнопррстуфхцчшщъыь';
		$find = 'р';
		$result = Multibyte::substrCount($string, $find);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = 'فنقكلنمنهونىينًٌٍَُ';
		$find = 'ن';
		$result = Multibyte::substrCount($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✿✴✵✶✷✸✿✹✺✻✼✽✾✿❀❁❂❃❄❅❆✿❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = Multibyte::substrCount($string, $find);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺐⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺐⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⺐⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = Multibyte::substrCount($string, $find);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽤⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽤⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = Multibyte::substrCount($string, $find);
		$expected = 3;
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눺눻눼눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕눺눻눼뉖뉗뉘뉙뉚뉛뉜뉝눺눻눼뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눺눻눼';
		$result = Multibyte::substrCount($string, $find);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = 'ﺞﺟﺠﺡﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺞﺟﺠﺡﺆﺇﺞﺟﺠﺡﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞﺟﺠﺡ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﻞﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻞﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻞﻸﻹﻺﻞﻻﻼ';
		$find = 'ﻞ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 5;
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｋｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｋｙｚ';
		$find = 'ｋ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 3;
		$this->assertEquals($expected, $result);

		$string = 'ａｂｋｌｍｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｋｌｍｗｘｙｚ';
		$find = 'ｋｌｍ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 3;
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｐｐｅｆｇｈｉｊｋｌｍｎｏｐｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｐｐｅ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 1;
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 1;
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 1;
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = Multibyte::substrCount($string, $find);
		$expected = 1;
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ĺļ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 1;
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'o';
		$result = Multibyte::substrCount($string, $find);
		$expected = 2;
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$find = 'rl';
		$result = Multibyte::substrCount($string, $find);
		$expected = 1;
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$find = 'n';
		$result = Multibyte::substrCount($string, $find);
		$expected = 1;
		$this->assertEquals($expected, $result);

		$string = 'ničiničiini';
		$find = 'n';
		$result = Multibyte::substrCount($string, $find);
		$expected = 3;
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$find = 'ć';
		$result = Multibyte::substrCount($string, $find);
		$expected = 1;
		$this->assertEquals($expected, $result);

		$string = 'moćimoćimoćmćioći';
		$find = 'ći';
		$result = Multibyte::substrCount($string, $find);
		$expected = 4;
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$find = 'ž';
		$result = Multibyte::substrCount($string, $find);
		$expected = 1;
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$find = '设';
		$result = Multibyte::substrCount($string, $find);
		$expected = 1;
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$find = '周';
		$result = Multibyte::substrCount($string, $find);
		$expected = 1;
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'H';
		$result = Multibyte::substrCount($string, $find);
		$expected = 0;
		$this->assertEquals($expected, $result);
	}

/**
 * testUsingMbSubstr method
 *
 * @return void
 */
	public function testUsingMbSubstr() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$result = mb_substr($string, 4, 7);
		$expected = 'EFGHIJK';
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$result = mb_substr($string, 4, 7);
		$expected = 'ÄÅÆÇÈÉÊ';
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$result = mb_substr($string, 4, 7);
		$expected = 'ĈĊČĎĐĒĔ';
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$result = mb_substr($string, 4, 7);
		$expected = '%&\'()*+';
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$result = mb_substr($string, 4);
		$expected = '¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$result = mb_substr($string, 4, 7);
		$expected = 'ÍÎÏÐÑÒÓ';
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$result = mb_substr($string, 4, 7);
		$expected = 'ıĲĳĴĵĶķ';
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$result = mb_substr($string, 25);
		$expected = 'ƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$result = mb_substr($string, 3);
		$expected = 'ɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$result = mb_substr($string, 3);
		$expected = 'ЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$result = mb_substr($string, 3, 16);
		$expected = 'ПРСТУФХЦЧШЩЪЫЬЭЮ';
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$result = mb_substr($string, 3, 6);
		$expected = 'لمنهوى';
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$result = mb_substr($string, 6, 14);
		$expected = '✶✷✸✹✺✻✼✽✾✿❀❁❂❃';
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$result = mb_substr($string, 8, 13);
		$expected = '⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔';
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$result = mb_substr($string, 12, 24);
		$expected = '⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨';
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$result = mb_substr($string, 12, 24);
		$expected = '눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄';
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$result = mb_substr($string, 12);
		$expected = 'ﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$result = mb_substr($string, 24, 12);
		$expected = 'ﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔ';
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$result = mb_substr($string, 11, 2);
		$expected = 'ｌｍ';
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$result = mb_substr($string, 7, 11);
		$expected = 'ｨｩｪｫｬｭｮｯｰｱｲ';
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$result = mb_substr($string, 13, 13);
		$expected = 'ﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒ';
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$result = mb_substr($string, 3, 4);
		$expected = 'ļŏ, ';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$result = mb_substr($string, 3, 4);
		$expected = 'lo, ';
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$result = mb_substr($string, 3);
		$expected = 'i';
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$result = mb_substr($string, 1);
		$expected = 'oći';
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$result = mb_substr($string, 0, 2);
		$expected = 'dr';
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$result = mb_substr($string, 3, 3);
		$expected = '设为首';
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$result = mb_substr($string, 0, 1);
		$expected = '一';
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$result = mb_substr($string, 6);
		$expected = false;
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$result = mb_substr($string, 0);
		$expected = '一二三周永龍';
		$this->assertEquals($expected, $result);
	}

/**
 * testMultibyteSubstr method
 *
 * @return void
 */
	public function testMultibyteSubstr() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$result = Multibyte::substr($string, 4, 7);
		$expected = 'EFGHIJK';
		$this->assertEquals($expected, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$result = Multibyte::substr($string, 4, 7);
		$expected = 'ÄÅÆÇÈÉÊ';
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$result = Multibyte::substr($string, 4, 7);
		$expected = 'ĈĊČĎĐĒĔ';
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$result = Multibyte::substr($string, 4, 7);
		$expected = '%&\'()*+';
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$result = Multibyte::substr($string, 4);
		$expected = '¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$result = Multibyte::substr($string, 4, 7);
		$expected = 'ÍÎÏÐÑÒÓ';
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$result = Multibyte::substr($string, 4, 7);
		$expected = 'ıĲĳĴĵĶķ';
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$result = Multibyte::substr($string, 25);
		$expected = 'ƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$result = Multibyte::substr($string, 3);
		$expected = 'ɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$result = Multibyte::substr($string, 3);
		$expected = 'ЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$result = Multibyte::substr($string, 3, 16);
		$expected = 'ПРСТУФХЦЧШЩЪЫЬЭЮ';
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$result = Multibyte::substr($string, 3, 6);
		$expected = 'لمنهوى';
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$result = Multibyte::substr($string, 6, 14);
		$expected = '✶✷✸✹✺✻✼✽✾✿❀❁❂❃';
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$result = Multibyte::substr($string, 8, 13);
		$expected = '⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔';
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$result = Multibyte::substr($string, 12, 24);
		$expected = '⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨';
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$result = Multibyte::substr($string, 12, 24);
		$expected = '눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄';
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$result = Multibyte::substr($string, 12);
		$expected = 'ﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$result = Multibyte::substr($string, 24, 12);
		$expected = 'ﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔ';
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$result = Multibyte::substr($string, 11, 2);
		$expected = 'ｌｍ';
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$result = Multibyte::substr($string, 7, 11);
		$expected = 'ｨｩｪｫｬｭｮｯｰｱｲ';
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$result = Multibyte::substr($string, 13, 13);
		$expected = 'ﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒ';
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$result = Multibyte::substr($string, 3, 4);
		$expected = 'ļŏ, ';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$result = Multibyte::substr($string, 3, 4);
		$expected = 'lo, ';
		$this->assertEquals($expected, $result);

		$string = 'čini';
		$result = Multibyte::substr($string, 3);
		$expected = 'i';
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$result = Multibyte::substr($string, 1);
		$expected = 'oći';
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$result = Multibyte::substr($string, 0, 2);
		$expected = 'dr';
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$result = Multibyte::substr($string, 3, 3);
		$expected = '设为首';
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$result = Multibyte::substr($string, 0, 1);
		$expected = '一';
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$result = Multibyte::substr($string, 6);
		$expected = false;
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$result = Multibyte::substr($string, 0);
		$expected = '一二三周永龍';
		$this->assertEquals($expected, $result);
	}

/**
 * testMultibyteSubstr method
 *
 * @return void
 */
	public function testMultibyteMimeEncode() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$result = Multibyte::mimeEncode($string);
		$this->assertEquals($string, $result);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$result = Multibyte::mimeEncode($string);
		$expected = '=?UTF-8?B?w4DDgcOCw4PDhMOFw4bDh8OIw4nDisOLw4zDjcOOw4/DkMORw5LDk8OUw5U=?=' . "\r\n" .
					' =?UTF-8?B?w5bDmMOZw5rDm8Ocw53Dng==?=';
		$this->assertEquals($expected, $result);
		$result = Multibyte::mimeEncode($string, null, "\n");
		$expected = '=?UTF-8?B?w4DDgcOCw4PDhMOFw4bDh8OIw4nDisOLw4zDjcOOw4/DkMORw5LDk8OUw5U=?=' . "\n" .
					' =?UTF-8?B?w5bDmMOZw5rDm8Ocw53Dng==?=';
		$this->assertEquals($expected, $result);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮĲĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$result = Multibyte::mimeEncode($string);
		$expected = '=?UTF-8?B?xIDEgsSExIbEiMSKxIzEjsSQxJLElMSWxJjEmsScxJ7EoMSixKTEpsSoxKo=?=' . "\r\n" .
					' =?UTF-8?B?xKzErsSyxLTEtsS5xLvEvcS/xYHFg8WFxYfFisWMxY7FkMWSxZTFlsWYxZo=?=' . "\r\n" .
					' =?UTF-8?B?xZzFnsWgxaLFpMWmxajFqsWsxa7FsMWyxbTFtsW5xbvFvQ==?=';
		$this->assertEquals($expected, $result);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$result = Multibyte::mimeEncode($string);
		$expected = '=?UTF-8?B?ISIjJCUmJygpKissLS4vMDEyMzQ1Njc4OTo7PD0+P0BBQkNERUZHSElKS0xN?=' . "\r\n" .
					' =?UTF-8?B?Tk9QUVJTVFVWV1hZWltcXV5fYGFiY2RlZmdoaWprbG1ub3BxcnN0dXZ3eHl6?=' . "\r\n" .
					' =?UTF-8?B?e3x9fg==?=';
		$this->assertEquals($expected, $result);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$result = Multibyte::mimeEncode($string);
		$expected = '=?UTF-8?B?wqHCosKjwqTCpcKmwqfCqMKpwqrCq8Kswq3CrsKvwrDCscKywrPCtMK1wrY=?=' . "\r\n" .
					' =?UTF-8?B?wrfCuMK5wrrCu8K8wr3CvsK/w4DDgcOCw4PDhMOFw4bDh8OI?=';
		$this->assertEquals($expected, $result);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$result = Multibyte::mimeEncode($string);
		$expected = '=?UTF-8?B?w4nDisOLw4zDjcOOw4/DkMORw5LDk8OUw5XDlsOXw5jDmcOaw5vDnMOdw54=?=' . "\r\n" .
					' =?UTF-8?B?w5/DoMOhw6LDo8Okw6XDpsOnw6jDqcOqw6vDrMOtw67Dr8Oww7HDssOzw7Q=?=' . "\r\n" .
					' =?UTF-8?B?w7XDtsO3w7jDucO6w7vDvMO9w77Dv8SAxIHEgsSDxITEhcSGxIfEiMSJxIo=?=' . "\r\n" .
					' =?UTF-8?B?xIvEjMSNxI7Ej8SQxJHEksSTxJTElcSWxJfEmMSZxJrEm8ScxJ3EnsSfxKA=?=' . "\r\n" .
					' =?UTF-8?B?xKHEosSjxKTEpcSmxKfEqMSpxKrEq8Ss?=';
		$this->assertEquals($expected, $result);

		$string = 'ĭĮįİıĲĳĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňŉŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$result = Multibyte::mimeEncode($string);
		$expected = '=?UTF-8?B?xK3ErsSvxLDEscSyxLPEtMS1xLbEt8S4xLnEusS7xLzEvcS+xL/FgMWBxYI=?=' . "\r\n" .
					' =?UTF-8?B?xYPFhMWFxYbFh8WIxYnFisWLxYzFjcWOxY/FkMWRxZLFk8WUxZXFlsWXxZg=?=' . "\r\n" .
					' =?UTF-8?B?xZnFmsWbxZzFncWexZ/FoMWhxaLFo8WkxaXFpsWnxajFqcWqxavFrMWtxa4=?=' . "\r\n" .
					' =?UTF-8?B?xa/FsMWxxbLFs8W0xbXFtsW3xbjFucW6xbvFvMW9xb7Fv8aAxoHGgsaDxoQ=?=' . "\r\n" .
					' =?UTF-8?B?xoXGhsaHxojGicaKxovGjMaNxo7Gj8aQ?=';
		$this->assertEquals($expected, $result);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃǄǅǆǇǈǉǊǋǌǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰǱǲǳǴ';
		$result = Multibyte::mimeEncode($string);
		$expected = '=?UTF-8?B?xpHGksaTxpTGlcaWxpfGmMaZxprGm8acxp3GnsafxqDGocaixqPGpMalxqY=?=' . "\r\n" .
					' =?UTF-8?B?xqfGqMapxqrGq8asxq3GrsavxrDGscayxrPGtMa1xrbGt8a4xrnGusa7xrw=?=' . "\r\n" .
					' =?UTF-8?B?xr3Gvsa/x4DHgceCx4PHhMeFx4bHh8eIx4nHiseLx4zHjceOx4/HkMeRx5I=?=' . "\r\n" .
					' =?UTF-8?B?x5PHlMeVx5bHl8eYx5nHmsebx5zHnceex5/HoMehx6LHo8ekx6XHpsenx6g=?=' . "\r\n" .
					' =?UTF-8?B?x6nHqserx6zHrceux6/HsMexx7LHs8e0?=';
		$this->assertEquals($expected, $result);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$result = Multibyte::mimeEncode($string);
		$expected = '=?UTF-8?B?yZnJmsmbyZzJncmeyZ/JoMmhyaLJo8mkyaXJpsmnyajJqcmqyavJrMmtya4=?=' . "\r\n" .
					' =?UTF-8?B?ya/JsMmxybLJs8m0ybXJtsm3ybjJucm6ybvJvMm9yb7Jv8qAyoHKgsqDyoQ=?=' . "\r\n" .
					' =?UTF-8?B?yoXKhsqHyojKicqKyovKjMqNyo7Kj8qQypHKksqTypTKlcqWypfKmMqZypo=?=' . "\r\n" .
					' =?UTF-8?B?ypvKnMqdyp7Kn8qgyqHKosqjyqTKpcqmyqfKqMqpyqrKq8qsyq3KrsqvyrA=?=' . "\r\n" .
					' =?UTF-8?B?yrHKssqzyrTKtcq2yrfKuMq5yrrKu8q8?=';
		$this->assertEquals($expected, $result);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$result = Multibyte::mimeEncode($string);
		$expected = '=?UTF-8?B?0IDQgdCC0IPQhNCF0IbQh9CI0InQitCL0IzQjdCO0I/QkNCR0JLQk9CU0JU=?=' . "\r\n" .
					' =?UTF-8?B?0JbQl9CY0JnQmtCb?=';
		$this->assertEquals($expected, $result);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$result = Multibyte::mimeEncode($string);
		$expected = '=?UTF-8?B?0JzQndCe0J/QoNCh0KLQo9Ck0KXQptCn0KjQqdCq0KvQrNCt0K7Qr9Cw0LE=?=' . "\r\n" .
					' =?UTF-8?B?0LLQs9C00LXQttC30LjQudC60LvQvNC90L7Qv9GA0YHRgtGD0YTRhdGG0Yc=?=' . "\r\n" .
					' =?UTF-8?B?0YjRidGK0YvRjA==?=';
		$this->assertEquals($expected, $result);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$result = Multibyte::mimeEncode($string);
		$expected = '=?UTF-8?B?2YHZgtmD2YTZhdmG2YfZiNmJ2YrZi9mM2Y3ZjtmP?=';
		$this->assertEquals($expected, $result);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$result = Multibyte::mimeEncode($string);
		$expected = '=?UTF-8?B?4pyw4pyx4pyy4pyz4py04py14py24py34py44py54py64py74py84py94py+?=' . "\r\n" .
					' =?UTF-8?B?4py/4p2A4p2B4p2C4p2D4p2E4p2F4p2G4p2H4p2I4p2J4p2K4p2L4p2M4p2N?=' . "\r\n" .
					' =?UTF-8?B?4p2O4p2P4p2Q4p2R4p2S4p2T4p2U4p2V4p2W4p2X4p2Y4p2Z4p2a4p2b4p2c?=' . "\r\n" .
					' =?UTF-8?B?4p2d4p2e?=';
		$this->assertEquals($expected, $result);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$result = Multibyte::mimeEncode($string);
		$expected = '=?UTF-8?B?4rqA4rqB4rqC4rqD4rqE4rqF4rqG4rqH4rqI4rqJ4rqK4rqL4rqM4rqN4rqO?=' . "\r\n" .
					' =?UTF-8?B?4rqP4rqQ4rqR4rqS4rqT4rqU4rqV4rqW4rqX4rqY4rqZ4rqb4rqc4rqd4rqe?=' . "\r\n" .
					' =?UTF-8?B?4rqf4rqg4rqh4rqi4rqj4rqk4rql4rqm4rqn4rqo4rqp4rqq4rqr4rqs4rqt?=' . "\r\n" .
					' =?UTF-8?B?4rqu4rqv4rqw4rqx4rqy4rqz4rq04rq14rq24rq34rq44rq54rq64rq74rq8?=' . "\r\n" .
					' =?UTF-8?B?4rq94rq+4rq/4ruA4ruB4ruC4ruD4ruE4ruF4ruG4ruH4ruI4ruJ4ruK4ruL?=' . "\r\n" .
					' =?UTF-8?B?4ruM4ruN4ruO4ruP4ruQ4ruR4ruS4ruT4ruU4ruV4ruW4ruX4ruY4ruZ4rua?=' . "\r\n" .
					' =?UTF-8?B?4rub4ruc4rud4rue4ruf4rug?=';
		$this->assertEquals($expected, $result);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$result = Multibyte::mimeEncode($string);
		$expected = '=?UTF-8?B?4r2F4r2G4r2H4r2I4r2J4r2K4r2L4r2M4r2N4r2O4r2P4r2Q4r2R4r2S4r2T?=' . "\r\n" .
					' =?UTF-8?B?4r2U4r2V4r2W4r2X4r2Y4r2Z4r2a4r2b4r2c4r2d4r2e4r2f4r2g4r2h4r2i?=' . "\r\n" .
					' =?UTF-8?B?4r2j4r2k4r2l4r2m4r2n4r2o4r2p4r2q4r2r4r2s4r2t4r2u4r2v4r2w4r2x?=' . "\r\n" .
					' =?UTF-8?B?4r2y4r2z4r204r214r224r234r244r254r264r274r284r294r2+4r2/?=';
		$this->assertEquals($expected, $result);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$result = Multibyte::mimeEncode($string);
		$expected = '=?UTF-8?B?64ih64ii64ij64ik64il64im64in64io64ip64iq64ir64is64it64iu64iv?=' . "\r\n" .
					' =?UTF-8?B?64iw64ix64iy64iz64i064i164i264i364i464i564i664i764i864i964i+?=' . "\r\n" .
					' =?UTF-8?B?64i/64mA64mB64mC64mD64mE64mF64mG64mH64mI64mJ64mK64mL64mM64mN?=' . "\r\n" .
					' =?UTF-8?B?64mO64mP64mQ64mR64mS64mT64mU64mV64mW64mX64mY64mZ64ma64mb64mc?=' . "\r\n" .
					' =?UTF-8?B?64md64me64mf64mg64mh64mi64mj64mk64ml64mm64mn64mo64mp64mq64mr?=' . "\r\n" .
					' =?UTF-8?B?64ms64mt64mu64mv64mw64mx64my64mz64m064m164m264m364m464m564m6?=' . "\r\n" .
					' =?UTF-8?B?64m764m864m964m+64m/64qA64qB64qC64qD64qE?=';
		$this->assertEquals($expected, $result);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$result = Multibyte::mimeEncode($string);
		$expected = '=?UTF-8?B?77mw77mx77my77mz77m077m177m277m377m477m577m677m777m877m977m+?=' . "\r\n" .
					' =?UTF-8?B?77m/77qA77qB77qC77qD77qE77qF77qG77qH77qI77qJ77qK77qL77qM77qN?=' . "\r\n" .
					' =?UTF-8?B?77qO77qP77qQ77qR77qS77qT77qU77qV77qW77qX77qY77qZ77qa77qb77qc?=' . "\r\n" .
					' =?UTF-8?B?77qd77qe77qf77qg77qh77qi77qj77qk77ql77qm77qn77qo77qp77qq77qr?=' . "\r\n" .
					' =?UTF-8?B?77qs77qt77qu77qv77qw?=';
		$this->assertEquals($expected, $result);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$result = Multibyte::mimeEncode($string);
		$expected = '=?UTF-8?B?77qx77qy77qz77q077q177q277q377q477q577q677q777q877q977q+77q/?=' . "\r\n" .
					' =?UTF-8?B?77uA77uB77uC77uD77uE77uF77uG77uH77uI77uJ77uK77uL77uM77uN77uO?=' . "\r\n" .
					' =?UTF-8?B?77uP77uQ77uR77uS77uT77uU77uV77uW77uX77uY77uZ77ua77ub77uc77ud?=' . "\r\n" .
					' =?UTF-8?B?77ue77uf77ug77uh77ui77uj77uk77ul77um77un77uo77up77uq77ur77us?=' . "\r\n" .
					' =?UTF-8?B?77ut77uu77uv77uw77ux77uy77uz77u077u177u277u377u477u577u677u7?=' . "\r\n" .
					' =?UTF-8?B?77u8?=';
		$this->assertEquals($expected, $result);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$result = Multibyte::mimeEncode($string);
		$expected = '=?UTF-8?B?772B772C772D772E772F772G772H772I772J772K772L772M772N772O772P?=' . "\r\n" .
					' =?UTF-8?B?772Q772R772S772T772U772V772W772X772Y772Z772a?=';
		$this->assertEquals($expected, $result);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$result = Multibyte::mimeEncode($string);
		$expected = '=?UTF-8?B?772h772i772j772k772l772m772n772o772p772q772r772s772t772u772v?=' . "\r\n" .
					' =?UTF-8?B?772w772x772y772z77207721772277237724?=';
		$this->assertEquals($expected, $result);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$result = Multibyte::mimeEncode($string);
		$expected = '=?UTF-8?B?77257726772777287729772+772/776A776B776C776D776E776F776G776H?=' . "\r\n" .
					' =?UTF-8?B?776I776J776K776L776M776N776O776P776Q776R776S776T776U776V776W?=' . "\r\n" .
					' =?UTF-8?B?776X776Y776Z776a776b776c776d776e?=';
		$this->assertEquals($expected, $result);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$result = Multibyte::mimeEncode($string);
		$expected = '=?UTF-8?B?xKTEk8S6xLzFjywgxbTFkcWZxLzEjyE=?=';
		$this->assertEquals($expected, $result);

		$string = 'Hello, World!';
		$result = Multibyte::mimeEncode($string);
		$this->assertEquals($string, $result);

		$string = 'čini';
		$result = Multibyte::mimeEncode($string);
		$expected = '=?UTF-8?B?xI1pbmk=?=';
		$this->assertEquals($expected, $result);

		$string = 'moći';
		$result = Multibyte::mimeEncode($string);
		$expected = '=?UTF-8?B?bW/Eh2k=?=';
		$this->assertEquals($expected, $result);

		$string = 'državni';
		$result = Multibyte::mimeEncode($string);
		$expected = '=?UTF-8?B?ZHLFvmF2bmk=?=';
		$this->assertEquals($expected, $result);

		$string = '把百度设为首页';
		$result = Multibyte::mimeEncode($string);
		$expected = '=?UTF-8?B?5oqK55m+5bqm6K6+5Li66aaW6aG1?=';
		$this->assertEquals($expected, $result);

		$string = '一二三周永龍';
		$result = Multibyte::mimeEncode($string);
		$expected = '=?UTF-8?B?5LiA5LqM5LiJ5ZGo5rC46b6N?=';
		$this->assertEquals($expected, $result);
	}
}
