3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $g = function ($c) use (&$g) { if ($c == 100) return 0; return $g($c + 1); }; var_dump($c(0));

Shows result from various feature-branches currently under review from the php developers. Contact me to have additional branches featured.

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