1--TEST-- 2Test array_slice() function : usage variations - Pass different data types as $input arg 3--FILE-- 4<?php 5/* Prototype : array array_slice(array $input, int $offset [, int $length [, bool $preserve_keys]]) 6 * Description: Returns elements specified by offset and length 7 * Source code: ext/standard/array.c 8 */ 9 10/* 11 * Pass different arguments as $input argument to array_slice() to test behaviour 12 */ 13 14echo "*** Testing array_slice() : usage variations ***\n"; 15 16// Initialise function arguments not being substituted 17$offset = 2; 18 19//get an unset variable 20$unset_var = 10; 21unset ($unset_var); 22 23// get a class 24class classA 25{ 26 public function __toString() { 27 return "Class A object"; 28 } 29} 30 31// heredoc string 32$heredoc = <<<EOT 33hello world 34EOT; 35 36// get a resource variable 37$fp = fopen(__FILE__, "r"); 38 39// unexpected values to be passed to $input argument 40$inputs = array( 41 42 // int data 43/*1*/ 0, 44 1, 45 12345, 46 -2345, 47 48 // float data 49/*5*/ 10.5, 50 -10.5, 51 12.3456789000e10, 52 12.3456789000E-10, 53 .5, 54 55 // null data 56/*10*/ NULL, 57 null, 58 59 // boolean data 60/*12*/ true, 61 false, 62 TRUE, 63 FALSE, 64 65 // empty data 66/*16*/ "", 67 '', 68 array(), 69 70 // string data 71/*19*/ "string", 72 'string', 73 $heredoc, 74 75 // object data 76/*22*/ new classA(), 77 78 // undefined data 79/*23*/ @$undefined_var, 80 81 // unset data 82/*24*/ @$unset_var, 83 84 // resource variable 85/*25*/ $fp 86); 87 88// loop through each element of $inputs to check the behavior of array_slice() 89$iterator = 1; 90foreach($inputs as $input) { 91 echo "\n-- Iteration $iterator --\n"; 92 var_dump( array_slice($input, $offset) ); 93 $iterator++; 94}; 95 96fclose($fp); 97 98echo "Done"; 99?> 100--EXPECTF-- 101*** Testing array_slice() : usage variations *** 102 103-- Iteration 1 -- 104 105Warning: array_slice() expects parameter 1 to be array, integer given in %s on line %d 106NULL 107 108-- Iteration 2 -- 109 110Warning: array_slice() expects parameter 1 to be array, integer given in %s on line %d 111NULL 112 113-- Iteration 3 -- 114 115Warning: array_slice() expects parameter 1 to be array, integer given in %s on line %d 116NULL 117 118-- Iteration 4 -- 119 120Warning: array_slice() expects parameter 1 to be array, integer given in %s on line %d 121NULL 122 123-- Iteration 5 -- 124 125Warning: array_slice() expects parameter 1 to be array, float given in %s on line %d 126NULL 127 128-- Iteration 6 -- 129 130Warning: array_slice() expects parameter 1 to be array, float given in %s on line %d 131NULL 132 133-- Iteration 7 -- 134 135Warning: array_slice() expects parameter 1 to be array, float given in %s on line %d 136NULL 137 138-- Iteration 8 -- 139 140Warning: array_slice() expects parameter 1 to be array, float given in %s on line %d 141NULL 142 143-- Iteration 9 -- 144 145Warning: array_slice() expects parameter 1 to be array, float given in %s on line %d 146NULL 147 148-- Iteration 10 -- 149 150Warning: array_slice() expects parameter 1 to be array, null given in %s on line %d 151NULL 152 153-- Iteration 11 -- 154 155Warning: array_slice() expects parameter 1 to be array, null given in %s on line %d 156NULL 157 158-- Iteration 12 -- 159 160Warning: array_slice() expects parameter 1 to be array, boolean given in %s on line %d 161NULL 162 163-- Iteration 13 -- 164 165Warning: array_slice() expects parameter 1 to be array, boolean given in %s on line %d 166NULL 167 168-- Iteration 14 -- 169 170Warning: array_slice() expects parameter 1 to be array, boolean given in %s on line %d 171NULL 172 173-- Iteration 15 -- 174 175Warning: array_slice() expects parameter 1 to be array, boolean given in %s on line %d 176NULL 177 178-- Iteration 16 -- 179 180Warning: array_slice() expects parameter 1 to be array, string given in %s on line %d 181NULL 182 183-- Iteration 17 -- 184 185Warning: array_slice() expects parameter 1 to be array, string given in %s on line %d 186NULL 187 188-- Iteration 18 -- 189array(0) { 190} 191 192-- Iteration 19 -- 193 194Warning: array_slice() expects parameter 1 to be array, string given in %s on line %d 195NULL 196 197-- Iteration 20 -- 198 199Warning: array_slice() expects parameter 1 to be array, string given in %s on line %d 200NULL 201 202-- Iteration 21 -- 203 204Warning: array_slice() expects parameter 1 to be array, string given in %s on line %d 205NULL 206 207-- Iteration 22 -- 208 209Warning: array_slice() expects parameter 1 to be array, object given in %s on line %d 210NULL 211 212-- Iteration 23 -- 213 214Warning: array_slice() expects parameter 1 to be array, null given in %s on line %d 215NULL 216 217-- Iteration 24 -- 218 219Warning: array_slice() expects parameter 1 to be array, null given in %s on line %d 220NULL 221 222-- Iteration 25 -- 223 224Warning: array_slice() expects parameter 1 to be array, resource given in %s on line %d 225NULL 226Done 227