$_SERVER['SERVER_ADDR'] is Undefined on php over plesk

Question

I am running a PHP script over PLESK that runs PHP codes via fastcgi to php feature.

everything works well but when I want to get USER IP address via this code

$_SERVER['SERVER_ADDR']

I encounter this error message :

Notice: Undefined index: SERVER_ADDR

It seems server variables are not available in PHP that runs over PLESK CGI

Please help me, if I want to get user IPs via php code, what should I do?

Answer 1

The user's IP is in $_SERVER['REMOTE_ADDR'], not SERVER_ADDR.