3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = 'abcdefghijklm'; for($i=strlen($s)-1, $j=0; $j<$i; $i--, $j++) { list($s[$j], $s[$i]) = array($s[$i], $s[$j]); } echo $s;
Output for git.master, git.master_jit, rfc.property-hooks
mlkjihgfedcba

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:
38.4 ms | 401 KiB | 8 Q