3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump(__DIR__);
Output for 5.3.0 - 5.6.30, hhvm-3.10.1 - 3.22.0, 7.0.0 - 7.2.2
string(3) "/in"
Output for 4.3.0 - 5.2.17
Notice: Use of undefined constant __DIR__ - assumed '__DIR__' in /in/1lRa2 on line 3 string(7) "__DIR__"