3v4l.org

run code in 300+ PHP versions simultaneously
<?php preg_match('/(?:\D+|<\d+>)*[!?]/', 'foobar foobar foobar'); if (preg_last_error() == PREG_BACKTRACK_LIMIT_ERROR) { print 'Backtrack limit was exhausted!'; } ?>
Output for git.master, git.master_jit, rfc.property-hooks
Backtrack limit was exhausted!

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:
63.87 ms | 401 KiB | 8 Q