Can I start by saying that i have a great deal of respect for Larry Ullman. This title along with PHP for the World Web (For beginners) are excellent titles for learning PHP & MySQL.
My only criticism is that he could have spent more time updating the examples. The main eCommerce example is one for a gallery, which has not changed as far as I can see for the last three editions. I just think its a bit lazy adding a few chapters and putting a smart new cover and selling it as completely revised and updated.
Still the best guide out there, but please spent more time on the updates.
Peter Jones