3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $wrapper = function(Closure $closure) { return $closure(); }; echo $wrapper(function(){ return 24;});
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.2.0
24