3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $foo ?>
Output for 5.3.0 - 5.6.30, 7.0.0 - 7.1.7
Output for hhvm-3.10.1 - 3.17.3
Notice: Undefined variable: foo in /in/JpNQb on line 3