3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $n;
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
Output for hhvm-3.12.0
Notice: Undefined variable: n in /in/8er8H on line -1
Output for hhvm-3.10.0
Notice: Undefined variable: n in /in/8er8H on line 3