3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(__DIR__);
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.13.2, 7.0.0 - 7.1.0
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__"