3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $foo = array(); $bar = $foo['bar']; var_dump($bar);
Output for 5.3.0 - 7.2.0
Notice: Undefined index: bar in /in/Wtjuq on line 5 NULL
Output for 4.3.0 - 5.2.17
Notice: Undefined index: bar in /in/Wtjuq on line 5 NULL