Online PHP editor | refs for hmd88

<?php function array_key_match($target, $match) { $targetKeys = array_keys($target); $diff = array_diff($target, $match); return ($diff == array_diff($diff, $match)); } function array_spit(array $array) { return mb_substr(array_reduce( $array, function ($carry, $item) { return $carry . $item . ', '; }, '[' ), 0, -2) . ']'; } function test($target, $match, $expect) { return sprintf( "Target %s, Match %s: %s", array_spit($target), array_spit($match), (array_key_match($target, $match) == $expect) ? 'true' : 'false' ) . "\n"; } print test([1, 2, 3, 4, 5], [2, 3], true); print test(['a', 'b', 'c'], ['c', 'b'], true); print test([1, 2, 3, 4, 5], [4, 5, 6], false);