Vars to use in stats program

Note: For a couple who seem to be wondering there is a PHP news server which works in conjunction with this mailing list. The address is: news.php.net Currently collect the following vars in a early stage stats program(Working on the KISS principle) for my own use. Here are the user vars I think I should collect. $_SERVER[REMOTE_HOST] $_SERVER[HTTP_REFERER] $_SERVER[HTTP_USER_AGENT] How can I get the remote DNS name? $_SERVER[REMOTE_HOST] gives an ip. What other info could I collect that would be useful? For $_SERVER[HTTP_REFERER] does any one have script that will get the http://www.foobar.com bit out of http://www.foobar.com/dir1/page1.htm? Some sort of explode would probably work but I am not sure on this one. For $_SERVER[HTTP_USER_AGENT] What is the best way to get seperate OS and Browser Vars? Thanks, JJ Harrison webmaster@tececo.com www.tececo.com