Traffic Stats / Sessions

[wdglide]

I am looking at putting together a very simple stats application. I wanted to track a count of sessions, page visits and referrers.

I've been looking around quite abit but most examples I see are way to advanced. I'm looking for a simple, small solution.

My thought is to put an include on every page that does the following:

1. start a session is one doesn't exist
2. if it is a new session, increment the session count in the mysql db.
3. log the referrer in the db, if its a new session and a refferer exists
4. increment the page_view count in the db

Are their any flaws in my logic?

Do you have any suggestions?