1--TEST-- 2basic array_filter test 3--FILE-- 4<?php 5function odd($var) 6{ 7 return($var & 1); 8} 9 10function even($var) 11{ 12 return(!($var & 1)); 13} 14 15$array1 = array("a"=>1, "b"=>2, "c"=>3, "d"=>4, "e"=>5); 16$array2 = array(6, 7, 8, 9, 10, 11, 12, 0); 17$array3 = array(TRUE, FALSE, NULL); 18 19echo "Odd :\n"; 20var_dump(array_filter($array1, "odd")); 21var_dump(array_filter($array2, "odd")); 22var_dump(array_filter($array3, "odd")); 23echo "Even:\n"; 24var_dump(array_filter($array1, "even")); 25var_dump(array_filter($array2, "even")); 26var_dump(array_filter($array3, "even")); 27 28var_dump(array_filter(array())); 29 30?> 31--EXPECT-- 32Odd : 33array(3) { 34 ["a"]=> 35 int(1) 36 ["c"]=> 37 int(3) 38 ["e"]=> 39 int(5) 40} 41array(3) { 42 [1]=> 43 int(7) 44 [3]=> 45 int(9) 46 [5]=> 47 int(11) 48} 49array(1) { 50 [0]=> 51 bool(true) 52} 53Even: 54array(2) { 55 ["b"]=> 56 int(2) 57 ["d"]=> 58 int(4) 59} 60array(5) { 61 [0]=> 62 int(6) 63 [2]=> 64 int(8) 65 [4]=> 66 int(10) 67 [6]=> 68 int(12) 69 [7]=> 70 int(0) 71} 72array(2) { 73 [1]=> 74 bool(false) 75 [2]=> 76 NULL 77} 78array(0) { 79} 80