3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [ 'firstname' , 'bob' , 'lastname' , 'alex' ]; $new = array_combine( array_intersect_key($a, array_flip(range(0, count($a) - 1, 2))), array_intersect_key($a, array_flip(range(1, count($a) - 1, 2))) ); print_r($new);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [firstname] => bob [lastname] => alex )

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:
76.75 ms | 401 KiB | 8 Q