3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $arr=null; echo $dio;
Output for 5.0.4 - 7.2.0
Notice: Undefined variable: dio in /in/Z5kgA on line 4
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: dio in /in/Z5kgA on line 4