3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array( array('b1'), ); $b = array( array('a1'), array('a2'), array('a3'), array('a4'), ); $c = array_merge($a, $b); var_dump($c);
Output for git.master, git.master_jit, rfc.property-hooks
array(5) { [0]=> array(1) { [0]=> string(2) "b1" } [1]=> array(1) { [0]=> string(2) "a1" } [2]=> array(1) { [0]=> string(2) "a2" } [3]=> array(1) { [0]=> string(2) "a3" } [4]=> array(1) { [0]=> string(2) "a4" } }

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:
53.5 ms | 402 KiB | 8 Q