Generally I view all coding texts the same way I view "self-help" books; kinda silly - don't read about it, just do it, you learn much more, much faster.
I'd have to actually flip through the book to pass an opinion, but most of these kind of books I've glossed over on store shelves seem pretty useless to me. Though it is possible that some may actually be handy.
Try these instead:
http://www.php.net/manual/en/http://dev.mysql.com/doc/mysql/en/index.html"RTFM"!!!
Seriously though, just get it directly from the "horse's mouth", its all there. (and free!)