3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php print_r($var); $var = "hello" ?>
Output for 5.3.0 - 5.6.30, hhvm-3.10.1 - 3.11.1, hhvm-3.13.2 - 3.17.3, 7.0.0 - 7.2.0
Notice: Undefined variable: var in /in/tBPB7 on line 3
Output for hhvm-3.12.14

Process exited with code 137.