3v4l.org

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

Process exited with code 153.