Online PHP editor | refs for 05tc7

<?php $arr = array("A" => "aa", "B" => ["A" => "aaa", "B" => "bb"], "C" => "cc", "D" => ["E" =>"ee"]); function array_filter_recursive(array &$array, callable $callback) { foreach ($array as $key => &$value) { if ($callback($key, $value)) unset($array[$key]); else if (is_array($value)) array_filter_recursive($value, $callback); } } function sanitizedArray(&$arr, $restrictedProperties) { foreach($restrictedProperties as $prop) { array_filter_recursive($arr, function($k, $v) use ($prop) {return $prop == $k;}); } } sanitizedArray($arr, ["D"]); print_r($arr);