3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $ip = $_SERVER['REMOTE_ADDR'] == "31.151.42.16"; echo $_SERVER['REMOTE_ADDR'];
Output for 5.3.0 - 7.2.0
Notice: Undefined index: REMOTE_ADDR in /in/p7Vss on line 2 Notice: Undefined index: REMOTE_ADDR in /in/p7Vss on line 3
Output for 4.3.0 - 5.2.17
Notice: Undefined index: REMOTE_ADDR in /in/p7Vss on line 2 Notice: Undefined index: REMOTE_ADDR in /in/p7Vss on line 3