3v4l.org

run code in 300+ PHP versions simultaneously
<?php for($i=0;$i<256;$i++){ $data = "a".chr($i)."b"; $a=preg_replace("/[^-_a-z]/", "", $data); if($a!="ab") echo chr($i)."\n"; } ?>
Output for git.master, git.master_jit, rfc.property-hooks
- _ a b c d e f g h i j k l m n o p q r s t u v w x y z

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:
51.17 ms | 401 KiB | 8 Q