3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = 'test'; function dump ( $var ) { echo $$var; } dump($a);
Output for 5.0.4 - 7.2.0
Notice: Undefined variable: test in /in/7rmhY on line 5
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: test in /in/7rmhY on line 5