3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "[x,y,z]"; $modified = str_replace("[", "[\"", $str); $preg = preg_replace('~\w~', '\"${1}\"', $str); echo $modified; echo $preg;
Output for git.master, git.master_jit, rfc.property-hooks
["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:
68.32 ms | 401 KiB | 8 Q