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