3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $name = 'this'; $$name;
Output for 5.0.4 - 7.1.0
Notice: Undefined variable: this in /in/aKo9Z on line 3
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: this in /in/aKo9Z on line 3