3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php print $x+1;
Output for 5.6.30, hhvm-3.15.4 - 3.21.3, 7.0.0 - 7.3.0beta2
Notice: Undefined variable: x in /in/YtVLM on line 3 1
Output for hhvm-3.22.0
Notice: Undefined variable: x in /in/YtVLM on line -1 1