1--TEST-- 2Test array_key_exists() function : object functionality 3--FILE-- 4<?php 5/* Prototype : bool array_key_exists(mixed $key, array $search) 6 * Description: Checks if the given key or index exists in the array 7 * Source code: ext/standard/array.c 8 * Alias to functions: key_exists 9 */ 10 11/* 12 * Test basic functionality of array_key_exists() with objects 13 */ 14 15echo "*** Testing array_key_exists() : object functionality ***\n"; 16 17class myClass { 18 var $var1; 19 var $var2; 20 var $var3; 21 22 function __construct($a, $b, $c = null) { 23 $this->var1 = $a; 24 $this->var2 = $b; 25 if (!is_null($c)) { 26 $this->var3 = $c; 27 } 28 } 29} 30 31echo "\n-- Do not assign a value to \$class1->var3 --\n"; 32$class1 = new myClass ('a', 'b'); 33echo "\$key = var1:\n"; 34var_dump(array_key_exists('var1', $class1)); 35echo "\$key = var3:\n"; 36var_dump(array_key_exists('var3', $class1)); 37echo "\$class1:\n"; 38var_dump($class1); 39 40echo "\n-- Assign a value to \$class2->var3 --\n"; 41$class2 = new myClass('x', 'y', 'z'); 42echo "\$key = var3:\n"; 43var_dump(array_key_exists('var3', $class2)); 44echo "\$class2:\n"; 45var_dump($class2); 46 47echo "Done"; 48?> 49--EXPECTF-- 50*** Testing array_key_exists() : object functionality *** 51 52-- Do not assign a value to $class1->var3 -- 53$key = var1: 54 55Deprecated: array_key_exists(): Using array_key_exists() on objects is deprecated. Use isset() or property_exists() instead in %s on line %d 56bool(true) 57$key = var3: 58 59Deprecated: array_key_exists(): Using array_key_exists() on objects is deprecated. Use isset() or property_exists() instead in %s on line %d 60bool(true) 61$class1: 62object(myClass)#1 (3) { 63 ["var1"]=> 64 string(1) "a" 65 ["var2"]=> 66 string(1) "b" 67 ["var3"]=> 68 NULL 69} 70 71-- Assign a value to $class2->var3 -- 72$key = var3: 73 74Deprecated: array_key_exists(): Using array_key_exists() on objects is deprecated. Use isset() or property_exists() instead in %s on line %d 75bool(true) 76$class2: 77object(myClass)#2 (3) { 78 ["var1"]=> 79 string(1) "x" 80 ["var2"]=> 81 string(1) "y" 82 ["var3"]=> 83 string(1) "z" 84} 85Done 86