parsing CSV, updating MySQL table

Hi, I have a client with an Excel file of products / prices / etc. For arguments sake, let's keep it simple: id,title,description if they were to export this as a CSV, then it could be used to update a mysql table (for existing ID's), and to insert any new ID's. So, I guess what I'm after is a group of functions which parse a CSV file, and update a MySQL table to match... rather than messing around in a web based GUI, the client could just upload a new CSV every couple of days. I've checked out fgetcsv() etc, and I *think* i've got a picture of how the code would look, but before I start, I figure a set of functions probably already exists out there to do this... so why reinvent the wheel???? If anyone can point me to a URL, class, function, article, etc, I'd be pretty happy :) Justin French