Online PHP editor | refs for O0hKS

<?php function key_compare_func($a, $b) { print "$a - $b\n"; if ($a === $b) { return 0; } return 1; } $array1 = array("a" => "green", "b" => "Brown", "c" => "blue", 0 => "red"); $array2 = array("a" => "green", "b" => "Brown", "c" => "blue", 0 => "red"); $result = array_diff_uassoc($array1, $array2, "key_compare_func"); print_r($result);