3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $foo = array('a'=>'b'); $foo2 = $foo['c']; print_r('bar'.$foo2);
based on YvUuO
Output for 5.3.0 - 7.2.0
Notice: Undefined index: c in /in/TNBoN on line 5 bar
Output for 4.3.0 - 5.2.17
Notice: Undefined index: c in /in/TNBoN on line 5 bar