3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = 1; $$a = 4; echo $$a; echo 012 + 4; switch ($a) { case 1 : echo "a"; default : echo "b"; }
based on GtmZN
Output for 4.3.0 - 7.2.0
414ab