henrytran9x · February 25, 2016 02:59
diff --git a/filter_array.php b/filter_array.php
 <?php
 function array_filter_key($matches,array $array)
 {
  $matchedKeys = preg_grep($matches, array_keys($array));
  return array_intersect_key($array, array_flip($matchedKeys));
 }
	<?php
	function array_filter_key($matches,array $array)
	{
	$matchedKeys = preg_grep($matches, array_keys($array));
	return array_intersect_key($array, array_flip($matchedKeys));
	}