3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php if (!empty($_SERVER["HTTP_CLIENT_IP"])) { //check for ip from share internet $ip = $_SERVER["HTTP_CLIENT_IP"]; } elseif (!empty($_SERVER["HTTP_X_FORWARDED_FOR"])) { // Check for the Proxy User $ip = $_SERVER["HTTP_X_FORWARDED_FOR"]; } else { $ip = $_SERVER["REMOTE_ADDR"]; } // This will print user's real IP Address // does't matter if user using proxy or not. echo $ip; ?>
Output for 5.3.0 - 5.6.28, hhvm-3.10.0, 7.0.0 - 7.1.0
Notice: Undefined index: REMOTE_ADDR in /in/i246O on line 14
Output for hhvm-3.12.0
Notice: Undefined index: REMOTE_ADDR in /in/i246O on line -1
Output for 4.3.0 - 5.2.17
Notice: Undefined index: REMOTE_ADDR in /in/i246O on line 14