I found that the PHP $_SERVER variable examples on the main PHP.net site (while informative) is far from easy to read and quick examples of return values were practically non-existant.
So, for my own reference (and anyone else who could use this) here are some $_SERVER return value examples.
$_SERVER Examples
| Argument | Example Return |
|---|---|
| PHP_SELF | /event/details.php |
| GATEWAY_INTERFACE | CGI/1.1 |
| SERVER_ADDR | Server IP: 70.32.68.238 |
| SERVER_NAME | www.territory3.com |
| SERVER_SOFTWARE | Apache/2.2.15 (Win32) JRun/4.0 PHP/5.4.10 |
| SERVER_PROTOCOL | HTTP/1.0 |
| REQUEST_METHOD | GET / POST / PUT / HEAD |
| REQUEST_TIME | Request start time: 1283144027 |
| QUERY_STRING | id=10&user=foo |
| DOCUMENT_ROOT | /path/to/server/root/ |
| HTTP_ACCEPT | text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 |
| HTTP_ACCEPT_CHARSET | ISO-8859-1,utf-8;q=0.7,*;q=0.7 |
| HTTP_ACCEPT_ENCODING | gzip,deflate |
| HTTP_ACCEPT_LANGUAGE | en-gb,en;q=0.5 |
| HTTP_CONNECTION | keep-alive |
| HTTP_HOST | www.territory3.com |
| HTTP_REFFERER | http://previous.url.com |
| HTTP_USER_AGENT | Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en) AppleWebKit/125.2 (KHTML, like Gecko) Safari/125.8 |
| HTTPS | 1 |
| REMOTE_ADDR | 195.20.168.75 |
| REMOTE_HOST | Client server host name |
| REMOTE_PORT | 5390 |
| SCRIPT_FILENAME | /path/to/script.php |
| SERVER_ADMIN | team@territory3.com |
| SERVER_PORT | 90 |
| SERVER_SIGNATURE | Version signature: 9.250 |
| SCRIPT_NAME | /event/details.php |
| REQUEST_URI | /event/details.php |