Q:

How can I get the IP address and port of a client with PHP?

How do I get the IP and port of a client with PHP?
I tried the script below but it only gives me the IP address.
<?php print $_SERVER['REMOTE_ADDR']; ?>

A:

To get the port of the connected device you can use $_SERVER['REMOTE_PORT']
$ipAddress = $_SERVER['REMOTE_ADDR'];
$port      = $_SERVER['REMOTE_PORT'];

A:

Port is defined in http server (Apache or other and mostly it is 80 or 443)
The PHP $_SERVER variables can be checked at this link.
I am sure that 'REMOTE_ADDR' returns the IP address from which the user is viewing the current page.
But if your server is behind NAT:

If you are serving from behind a proxy server, you will almost certainly save time by looking at what these $_SERVER variables do on your machine behind the proxy.

// in place of $_SERVER['REMOTE_ADDR']
$_SERVER['HTTP_X_FORWARDED_FOR']

//  in place of $_SERVER['SERVER_NAME']
$_SERVER['HTTP_X_FORWARDED_HOST'] && $_SERVER['HTTP_X_FORWARDED_SERVER']

