onitz.net

PHP variableCurrent valueexplanation
$_SERVER['REMOTE_ADDR'] 38.103.63.59 initial IP
$_SERVER['HTTP_X_FORWARDED_FOR'] real IP - no proxy
$_SERVER['HTTP_REFERER'] the page the user came from to get here
$_SERVER['SERVER_NAME'] www.onitz.net the name of server this page is on
$_SERVER['PHP_SELF'] /resources/vars.php the name & subdirectory of this page
$_SERVER['HTTP_USER_AGENT'] CCBot/1.0 (+http://www.commoncrawl.org/bot.html) info on users browser, OS etc

For more $_SERVER info, check out http://www.php.net/reserved.variables