--TEST-- array_diff_uassoc(): Basic test --FILE-- $b) ? 1 : -1; } $array1 = array("a" => "green", "b" => "brown", "c" => "blue", "red"); $array2 = array("a" => "green", "yellow", "red"); $result = array_diff_uassoc($array1, $array2, "key_compare_func"); var_dump($result); ?> --EXPECT-- array(3) { ["b"]=> string(5) "brown" ["c"]=> string(4) "blue" [0]=> string(3) "red" }