3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array(1, 2, 3, 4, 5, 6); echo $a[~1];
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
Notice: Undefined offset: -2 in /in/aIpvf on line 3
Output for hhvm-3.10.0 - 3.12.0
Notice: Undefined index: -2 in /in/aIpvf on line 3
Output for 4.3.0 - 5.2.17
Notice: Undefined offset: -2 in /in/aIpvf on line 3