3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php if (!empty($_SERVER['HTTP_CLIENT_IP'])){ $ip = $_SERVER['HTTP_CLIENT_IP']; } elseif (!empty($_SERVER['HTTP_X_FORWARDER_FOR'])){ $ip = $_SERVER['HTTP_X_FORWARDER_FOR']; } else{ $ip = $_SERVER['REMOTE_ADDR']; } echo $ip; ?>
based on mTHHS
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Notice: Undefined index: REMOTE_ADDR in /in/AavnO on line 9
Output for 4.3.0 - 5.2.17
Notice: Undefined index: REMOTE_ADDR in /in/AavnO on line 9