1--TEST-- 2Test mb_substr_count() function : usage variations - Pass different data types as $haystack arg 3--SKIPIF-- 4<?php 5extension_loaded('mbstring') or die('skip'); 6function_exists('mb_substr_count') or die("skip mb_substr_count() is not available in this build"); 7?> 8--FILE-- 9<?php 10/* Prototype :int mb_substr_count(string $haystack, string $needle [, string $encoding]) 11 * Description: Count the number of substring occurrences 12 * Source code: ext/mbstring/mbstring.c 13 */ 14 15/* 16 * Pass different data types as $haystack argument to mb_substr_count() to test behaviour 17 */ 18 19echo "*** Testing mb_substr_count() : usage variations ***\n"; 20 21 22// Initialise function arguments not being substituted 23$needle = 'world'; 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 "hello, world"; 34 } 35} 36 37// heredoc string 38$heredoc = <<<EOT 39hello, world 40EOT; 41 42// get a resource variable 43$fp = fopen(__FILE__, "r"); 44 45// unexpected values to be passed to $haystack argument 46$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*/ "hello, world", 77 'hello, world', 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 $inputs to check the behavior of mb_substr_count() 94$iterator = 1; 95foreach($inputs as $input) { 96 echo "\n-- Iteration $iterator --\n"; 97 var_dump( mb_substr_count($input, $needle) ); 98 $iterator++; 99}; 100 101fclose($fp); 102 103 104echo "Done"; 105?> 106--EXPECTF-- 107*** Testing mb_substr_count() : usage variations *** 108 109-- Iteration 1 -- 110int(0) 111 112-- Iteration 2 -- 113int(0) 114 115-- Iteration 3 -- 116int(0) 117 118-- Iteration 4 -- 119int(0) 120 121-- Iteration 5 -- 122int(0) 123 124-- Iteration 6 -- 125int(0) 126 127-- Iteration 7 -- 128int(0) 129 130-- Iteration 8 -- 131int(0) 132 133-- Iteration 9 -- 134int(0) 135 136-- Iteration 10 -- 137int(0) 138 139-- Iteration 11 -- 140int(0) 141 142-- Iteration 12 -- 143int(0) 144 145-- Iteration 13 -- 146int(0) 147 148-- Iteration 14 -- 149int(0) 150 151-- Iteration 15 -- 152int(0) 153 154-- Iteration 16 -- 155int(0) 156 157-- Iteration 17 -- 158int(0) 159 160-- Iteration 18 -- 161int(1) 162 163-- Iteration 19 -- 164int(1) 165 166-- Iteration 20 -- 167int(1) 168 169-- Iteration 21 -- 170int(1) 171 172-- Iteration 22 -- 173int(0) 174 175-- Iteration 23 -- 176int(0) 177 178-- Iteration 24 -- 179 180Warning: mb_substr_count() expects parameter 1 to be string, resource given in %s on line %d 181NULL 182Done 183