3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = 5; $b = &$a; $b += 10; echo $a; echo $b;
Output for 4.3.0 - 5.6.23, 5.6.25 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
1515
Output for 5.6.24, hhvm-3.13.2

Process exited with code 137.