3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = 21; for ($i=1;$i<=100000; $i++) $a = $a + $i; echo $a;
based on lWi2a
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
5000050021