3v4l.org

run code in 300+ PHP versions simultaneously
<?php $regex = '/(^a)|(.*(?=ab\K))/'; $subject = "aaaaxyzaabaa"; // Comment/uncomment below as wanted. // All 3 functions are vulnerable (note, other functions are affected as well) preg_match_all($regex,$subject,$x); var_dump($x);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: preg_match_all(): Get subpatterns list failed in /in/joMK5 on line 8 array(0) { }

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:
50.29 ms | 401 KiB | 8 Q