3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $t = 'a'; while($t !== 'z') { echo $t; $t++; }
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.13.2, 7.0.0 - 7.1.0
abcdefghijklmnopqrstuvwxy