3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php print_r(explode(";", $_SERVER['HTTP_USER_AGENT']));
Output for 5.3.0 - 7.1.0
Notice: Undefined index: HTTP_USER_AGENT in /in/UtilQ on line 3 Array ( [0] => )
Output for 4.3.0 - 5.2.17
Notice: Undefined index: HTTP_USER_AGENT in /in/UtilQ on line 3 Array ( [0] => )