3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function test() { $a = 0; echo $a; $a++; } test(); test(); test(); ?>
based on mthW6
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.3.0alpha1
000