3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function sum($arr) { if ( empty($arr) ) { return; } return $arr[0] + sum(array_slice($arr, 1)); } echo sum(array(1,2,3,4,5));
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
15
Output for hhvm-3.10.0

Process exited with code 153.