3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo $_SERVER['SERVER_SOFTWARE'];
based on CWIPC
Output for 5.3.0 - 7.1.0
Notice: Undefined index: SERVER_SOFTWARE in /in/4nkUH on line 2
Output for 4.3.0 - 5.2.17
Notice: Undefined index: SERVER_SOFTWARE in /in/4nkUH on line 2