3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo $a; ?>
Output for 5.5.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Notice: Undefined variable: a in /in/BOQUE on line 3
Output for 5.3.0 - 5.4.45