3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $ipaddress = $_SERVER['REMOTE_ADDR']; echo "Your IP is $ipaddress!"; ?>
Output for 5.3.0 - 7.2.0
Notice: Undefined index: REMOTE_ADDR in /in/qJcik on line 2 Your IP is !
Output for 4.3.0 - 5.2.17
Notice: Undefined index: REMOTE_ADDR in /in/qJcik on line 2 Your IP is !