3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function (){ return "I don't always name a function, but when I do, it's " . __FUNCTION__; }
Output for 4.3.0 - 5.6.21, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0