3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $ip = $_SERVER['REMOTE_ADDR']; var_dump($ip);
Output for 5.3.0 - 7.1.0
Notice: Undefined index: REMOTE_ADDR in /in/uJLkD on line 2 NULL
Output for 4.3.0 - 5.2.17
Notice: Undefined index: REMOTE_ADDR in /in/uJLkD on line 2 NULL