3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class E{function r($n,$c,$p){$this->e[$n][$p][]=$c;}function d($n){$p=$this->e[$n];krsort($p);foreach($p as $q){foreach($q as $r){$r();}}}}
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0