Also, on a side note this morning, there's a chapter of the O'Reilly book, the PHP Cookbook, posted over on their site. This chapter deals with the web programming aspects of PHP, and, according to the Fuzzy Blog:
The PHP Cookbook has been announced by O'Reilly and Chapter 8 on Web Programming is available as a downloadable PDF. I'ved added it to my permanent collection and you should too. There's a very nice trick about "unregistering" users who register but don't confirm their account with you. It's also already in the Amazon listings (it's due out in November).

To download the PDF file, check out this link.