3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = 'foo'; $b = 'bar'; $c = 'qux'; $d = $a. $b. $c;
based on GZbdk
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
Output for hhvm-3.10.0

Process exited with code 153.