3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function f(&$x){ unset($x[0]); return $x; } $t = array(1,2,3); $t = f($t); var_dump($t);
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
array(2) { [1]=> int(2) [2]=> int(3) }
Output for hhvm-3.10.0

Process exited with code 153.