1--TEST-- 2Test class_exists() function : usage variations - unexpected types for argument 1 3--FILE-- 4<?php 5/* Prototype : proto bool class_exists(string classname [, bool autoload]) 6 * Description: Checks if the class exists 7 * Source code: Zend/zend_builtin_functions.c 8 * Alias to functions: 9 */ 10 11function __autoload($className) { 12 echo "In __autoload($className)\n"; 13} 14 15function test_error_handler($err_no, $err_msg, $filename, $linenum, $vars) { 16 echo "Error: $err_no - $err_msg, $filename($linenum)\n"; 17} 18set_error_handler('test_error_handler'); 19 20echo "*** Testing class_exists() : usage variations ***\n"; 21 22// Initialise function arguments not being substituted (if any) 23$autoload = true; 24 25//get an unset variable 26$unset_var = 10; 27unset ($unset_var); 28 29//array of values to iterate over 30$values = array( 31 32 // int data 33 0, 34 1, 35 12345, 36 -2345, 37 38 // float data 39 10.5, 40 -10.5, 41 10.1234567e10, 42 10.7654321E-10, 43 .5, 44 45 // array data 46 array(), 47 array(0), 48 array(1), 49 array(1, 2), 50 array('color' => 'red', 'item' => 'pen'), 51 52 // null data 53 NULL, 54 null, 55 56 // boolean data 57 true, 58 false, 59 TRUE, 60 FALSE, 61 62 // empty data 63 "", 64 '', 65 66 // object data 67 new stdclass(), 68 69 // undefined data 70 $undefined_var, 71 72 // unset data 73 $unset_var, 74); 75 76// loop through each element of the array for classname 77 78foreach($values as $value) { 79 echo "\nArg value $value \n"; 80 var_dump( class_exists($value, $autoload) ); 81}; 82 83echo "Done"; 84?> 85--EXPECTF-- 86*** Testing class_exists() : usage variations *** 87Error: 8 - Undefined variable: undefined_var, %s(67) 88Error: 8 - Undefined variable: unset_var, %s(70) 89 90Arg value 0 91In __autoload(0) 92bool(false) 93 94Arg value 1 95In __autoload(1) 96bool(false) 97 98Arg value 12345 99In __autoload(12345) 100bool(false) 101 102Arg value -2345 103bool(false) 104 105Arg value 10.5 106bool(false) 107 108Arg value -10.5 109bool(false) 110 111Arg value 101234567000 112In __autoload(101234567000) 113bool(false) 114 115Arg value 1.07654321E-9 116bool(false) 117 118Arg value 0.5 119bool(false) 120Error: 8 - Array to string conversion, %sclass_exists_variation_001.php(%d) 121 122Arg value Array 123Error: 2 - class_exists() expects parameter 1 to be string, array given, %s(77) 124NULL 125Error: 8 - Array to string conversion, %sclass_exists_variation_001.php(%d) 126 127Arg value Array 128Error: 2 - class_exists() expects parameter 1 to be string, array given, %s(77) 129NULL 130Error: 8 - Array to string conversion, %sclass_exists_variation_001.php(%d) 131 132Arg value Array 133Error: 2 - class_exists() expects parameter 1 to be string, array given, %s(77) 134NULL 135Error: 8 - Array to string conversion, %sclass_exists_variation_001.php(%d) 136 137Arg value Array 138Error: 2 - class_exists() expects parameter 1 to be string, array given, %s(77) 139NULL 140Error: 8 - Array to string conversion, %sclass_exists_variation_001.php(%d) 141 142Arg value Array 143Error: 2 - class_exists() expects parameter 1 to be string, array given, %s(77) 144NULL 145 146Arg value 147bool(false) 148 149Arg value 150bool(false) 151 152Arg value 1 153In __autoload(1) 154bool(false) 155 156Arg value 157bool(false) 158 159Arg value 1 160In __autoload(1) 161bool(false) 162 163Arg value 164bool(false) 165 166Arg value 167bool(false) 168 169Arg value 170bool(false) 171Error: 4096 - Object of class stdClass could not be converted to string, %s(76) 172 173Arg value 174Error: 2 - class_exists() expects parameter 1 to be string, object given, %s(77) 175NULL 176 177Arg value 178bool(false) 179 180Arg value 181bool(false) 182Done