3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $allowed_ips = array("80.63.34.202"); if(!in_array($_SERVER['REMOTE_ADDR'], $allowed_ips)) print 'redirect'; else print 'good to go'; ?>
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/ODB1X on line 5 redirect
Output for 4.3.0 - 5.2.17
Notice: Undefined index: REMOTE_ADDR in /in/ODB1X on line 5 redirect