3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a=15; $b=17; function test () { global $a, $b; $a=$a+$b; } test (); echo $a; ?>
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
32
Output for hhvm-3.10.0

Process exited with code 153.