3v4l.org

run code in 300+ PHP versions simultaneously
<?php $proxy_ip=" "; if(!empty($_SERVER['HTTP_X_FORWARDED_FOR'])){ $proxy_ip = explode(',',$_SERVER['HTTP_X_FORWARDED_FOR']); $ip = $proxy_ip[0]; }else { $ip = $_SERVER['REMOTE_ADDR']; } ?>

preferences:
35.39 ms | 402 KiB | 5 Q