3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function func($input) { static $count = 0; return func($input); echo (++$count)."\n"; }
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0