1--TEST-- 2Test array_merge() function : usage variations - Mixed keys 3--FILE-- 4<?php 5/* Prototype : array array_merge(array $arr1, array $arr2 [, array $...]) 6 * Description: Merges elements from passed arrays into one array 7 * Source code: ext/standard/array.c 8 */ 9 10/* 11 * Pass array_merge() arrays with mixed keys to test how it attaches them to 12 * existing arrays 13 */ 14 15echo "*** Testing array_merge() : usage variations ***\n"; 16 17//mixed keys 18$arr1 = array('zero', 20 => 'twenty', 'thirty' => 30, true => 'bool'); 19$arr2 = array(0, 1, 2, null => 'null', 1.234E-10 => 'float'); 20 21var_dump(array_merge($arr1, $arr2)); 22var_dump(array_merge($arr2, $arr1)); 23 24echo "Done"; 25?> 26--EXPECT-- 27*** Testing array_merge() : usage variations *** 28array(8) { 29 [0]=> 30 string(4) "zero" 31 [1]=> 32 string(6) "twenty" 33 ["thirty"]=> 34 int(30) 35 [2]=> 36 string(4) "bool" 37 [3]=> 38 string(5) "float" 39 [4]=> 40 int(1) 41 [5]=> 42 int(2) 43 [""]=> 44 string(4) "null" 45} 46array(8) { 47 [0]=> 48 string(5) "float" 49 [1]=> 50 int(1) 51 [2]=> 52 int(2) 53 [""]=> 54 string(4) "null" 55 [3]=> 56 string(4) "zero" 57 [4]=> 58 string(6) "twenty" 59 ["thirty"]=> 60 int(30) 61 [5]=> 62 string(4) "bool" 63} 64Done 65