1--TEST-- 2Test mb_strlen() function : usage variations - Pass different data types as $encoding arg 3--SKIPIF-- 4<?php 5extension_loaded('mbstring') or die('skip'); 6function_exists('mb_strlen') or die("skip mb_strlen() is not available in this build"); 7?> 8--FILE-- 9<?php 10/* Prototype : int mb_strlen(string $str [, string $encoding]) 11 * Description: Get character numbers of a string 12 * Source code: ext/mbstring/mbstring.c 13 */ 14 15/* 16 * Test mb_strlen() by passing different data types as $encoding argument. 17 * Where possible 'UTF-8' has been entered as a string value 18 */ 19 20echo "*** Testing mb_strlen() : usage variations ***\n"; 21 22// Initialise function arguments not being substituted 23$str = 'string value'; 24 25//get an unset variable 26$unset_var = 10; 27unset ($unset_var); 28 29// get a class 30class classA 31{ 32 public function __toString() { 33 return "UTF-8"; 34 } 35} 36 37// heredoc string 38$heredoc = <<<EOT 39UTF-8 40EOT; 41 42// get a resource variable 43$fp = fopen(__FILE__, "r"); 44 45// unexpected values to be passed to $input argument 46$inputs = array( 47 48 // int data 49/*1*/ 0, 50 1, 51 12345, 52 -2345, 53 54 // float data 55/*5*/ 10.5, 56 -10.5, 57 12.3456789000e10, 58 12.3456789000E-10, 59 .5, 60 61 // null data 62/*10*/ NULL, 63 null, 64 65 // boolean data 66/*12*/ true, 67 false, 68 TRUE, 69 FALSE, 70 71 // empty data 72/*16*/ "", 73 '', 74 75 // string data 76/*18*/ "UTF-8", 77 'UTF-8', 78 $heredoc, 79 80 // object data 81/*21*/ new classA(), 82 83 // undefined data 84/*22*/ @$undefined_var, 85 86 // unset data 87/*23*/ @$unset_var, 88 89 // resource variable 90/*24*/ $fp 91); 92 93// loop through each element of $inputs to check the behavior of mb_strlen() 94$iterator = 1; 95foreach($inputs as $input) { 96 echo "\n-- Iteration $iterator --\n"; 97 var_dump( mb_strlen($str, $input)); 98 $iterator++; 99}; 100 101fclose($fp); 102 103echo "Done"; 104?> 105 106--EXPECTF-- 107*** Testing mb_strlen() : usage variations *** 108 109-- Iteration 1 -- 110 111Warning: mb_strlen(): Unknown encoding "0" in %s on line %d 112bool(false) 113 114-- Iteration 2 -- 115 116Warning: mb_strlen(): Unknown encoding "1" in %s on line %d 117bool(false) 118 119-- Iteration 3 -- 120 121Warning: mb_strlen(): Unknown encoding "12345" in %s on line %d 122bool(false) 123 124-- Iteration 4 -- 125 126Warning: mb_strlen(): Unknown encoding "-2345" in %s on line %d 127bool(false) 128 129-- Iteration 5 -- 130 131Warning: mb_strlen(): Unknown encoding "10.5" in %s on line %d 132bool(false) 133 134-- Iteration 6 -- 135 136Warning: mb_strlen(): Unknown encoding "-10.5" in %s on line %d 137bool(false) 138 139-- Iteration 7 -- 140 141Warning: mb_strlen(): Unknown encoding "123456789000" in %s on line %d 142bool(false) 143 144-- Iteration 8 -- 145 146Warning: mb_strlen(): Unknown encoding "1.23456789E-9" in %s on line %d 147bool(false) 148 149-- Iteration 9 -- 150 151Warning: mb_strlen(): Unknown encoding "0.5" in %s on line %d 152bool(false) 153 154-- Iteration 10 -- 155 156Warning: mb_strlen(): Unknown encoding "" in %s on line %d 157bool(false) 158 159-- Iteration 11 -- 160 161Warning: mb_strlen(): Unknown encoding "" in %s on line %d 162bool(false) 163 164-- Iteration 12 -- 165 166Warning: mb_strlen(): Unknown encoding "1" in %s on line %d 167bool(false) 168 169-- Iteration 13 -- 170 171Warning: mb_strlen(): Unknown encoding "" in %s on line %d 172bool(false) 173 174-- Iteration 14 -- 175 176Warning: mb_strlen(): Unknown encoding "1" in %s on line %d 177bool(false) 178 179-- Iteration 15 -- 180 181Warning: mb_strlen(): Unknown encoding "" in %s on line %d 182bool(false) 183 184-- Iteration 16 -- 185 186Warning: mb_strlen(): Unknown encoding "" in %s on line %d 187bool(false) 188 189-- Iteration 17 -- 190 191Warning: mb_strlen(): Unknown encoding "" in %s on line %d 192bool(false) 193 194-- Iteration 18 -- 195int(12) 196 197-- Iteration 19 -- 198int(12) 199 200-- Iteration 20 -- 201int(12) 202 203-- Iteration 21 -- 204int(12) 205 206-- Iteration 22 -- 207 208Warning: mb_strlen(): Unknown encoding "" in %s on line %d 209bool(false) 210 211-- Iteration 23 -- 212 213Warning: mb_strlen(): Unknown encoding "" in %s on line %d 214bool(false) 215 216-- Iteration 24 -- 217 218Warning: mb_strlen() expects parameter 2 to be string, resource given in %s on line %d 219bool(false) 220Done 221