3v4l.org

run code in 300+ PHP versions simultaneously
<?php $txt = 'aab bbcdadddeeff'; if (preg_match('/([a-z])\1{2,}/', $txt)) echo 'The string is not valid';
Output for git.master, git.master_jit, rfc.property-hooks
The string is not valid

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:
52.21 ms | 401 KiB | 8 Q