3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php namespace Random; echo UndefinedClass::class;
based on 6h21U
Output for 5.6.0 - 5.6.30, hhvm-3.12.14 - 3.17.3, 7.0.0 - 7.1.7
Random\UndefinedClass