Getting computer name, computer's Local ip and computer's server ip using php

How do I get computer name, computer's Local IP (if it is using LAN) and computer's server IP (LAN's Server IP) using P开发者_如何转开发HP.

Server IP: $_SERVER['SERVER_ADDR']

Computer name: You can't get that.

Local ip will be $_SERVER['REMOTE_ADDR'] if you are on a local server.

This is the list of available $_SERVER vars: http://php.net/manual/en/reserved.variables.server.php

I think they should all be in the $_SERVER superglobal.

All covered here: http://php.net/manual/en/reserved.variables.server.php

I use this one:

gethostbyaddr($_SERVER['REMOTE_ADDR'])