3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $lol = 'x' ^ 'a'; echo $lol ^ 'a'; ?>
based on i5Lk0
Output for 5.6.0 - 5.6.38, hhvm-3.15.4, 7.0.0 - 7.3.1
x