- print_r: documentation ( source)
- array_keys: documentation ( source)
- array_diff: documentation ( source)
<?php
function array_key_match($target, $match) {
$targetKeys = array_keys($target);
$diff = array_diff($target, $match);
return ($diff == array_diff($diff, $match));
}
print_r(array_diff([1, 2, 3, 4], [1, 4]));