3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $i = 5; $i = ++$i + $i++; echo $i;
based on AGDu7
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.3.0alpha1
12