3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = array(); $b = 'noone.here'; unset($a[$b]); var_dump($a[$b]);
Output for 5.5.0 - 7.2.0
Notice: Undefined index: noone.here in /in/49Jo6 on line 8 NULL
Output for 4.3.0 - 5.4.45
NULL