I bought myself PHP & MySQL for dummies some years ago, as a reference, and then I been going through a LOT of tut and reading article and classes over the web. Just like John Tiddell said, book arent going make you better, I use it as a reference cause it has all the basic in it, but once you know the concept base, you'll be able to do whatever you want, juste by searching the web or reading tut or whatever... you know, free stuff from internet, I found out that PHPClasses.ORG not dot com, is heck of a good resource site!!
hth, jc