Gathering user info with php or php and mysql.

Hi All, I've been messing around and trying to figure out how to log info for error messages. I'm using a htaccess file to redirect requests to php error pages like below, My htaccess file: ErrorDocument 401 /error/error401.php ErrorDocument 403 /error/error403.php ErrorDocument 404 /error/error404.php ErrorDocument 500 /error/error405.php My question is this, Is it possible to use php to get the referring url, browser, os, date of error and stuff and then either write it to a text file or possible log it into mysql? I've looked at files that insert data into a mysql database but the info comes from a post form or such. I'd just like the page to add this to mysql on page load so that I can write a page to pull the errors and view them online. If you know of a link to documentation or have any ideas, Let me know. I'd like to figure this out as I'm trying to learn php but any and all help is appreciated. Thanks in advance, Chris Bunting _________________________________________________________________ Send and receive Hotmail on your mobile device: http://mobile.msn.com