3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $lol = "Nope"; $$lol = true; $lol = "Yep"; $k = $lol; echo $$k?$k:"This is not an test";
Output for 5.0.4 - 7.1.0
Notice: Undefined variable: Yep in /in/oP6dj on line 10 This is not an test
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: Yep in /in/oP6dj on line 10 This is not an test