3v4l.org

run code in 300+ PHP versions simultaneously
<?php $values = [ 'ffffffff' => 'a', 'ffflohff' => 'b', 'lohlohff' => 'c', ]; $filteredValues = array_intersect_key($values, array_flip(preg_grep('/loh/', array_keys($values)))); var_dump($filteredValues);
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { ["ffflohff"]=> string(1) "b" ["lohlohff"]=> string(1) "c" }

This tab shows result from various feature-branches currently under review by the php developers. Contact me to have additional branches featured.

Active branches

Archived branches

Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page

preferences:
48.71 ms | 405 KiB | 5 Q