3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = array(); echo $a[null]; var_dump($a);
Output for 5.3.0 - 7.1.7, 7.2.0
Notice: Undefined index: in /in/Not3R on line 4 array(0) { }
Output for 7.1.10

Process exited with code 137.
Output for 4.3.0 - 5.2.17
Notice: Undefined index: in /in/Not3R on line 4 array(0) { }