This is the 5th update to this book by Kevin Yank. I have the 1st and 3rd.
I do not by any means consider myself an expert in either topic, rather that I can get by creating database driven applications that I need.
What the book does is quite simple, it walks you through the setup of a local testing area on your home pc or laptop. You do not need the internet at to follow the book. It then takes you through the stages of building a website to store jokes, in effect you are building a website that allows jokes to be entered, edited and so on.
It is very hands on and get's you straight into the detail without any long winded introduction which we all hate right?
It's easy to follow and Kevin has a good style, he appreciates you are probably nervous about new languages and writes in very friendly style.
What you should appreciate though is that this book is about getting you in quickly and learning, the end result being a completed project. Just bear in mind that these days things like interenet security are more important than ever, the book is not going to teach you advanced techniques and once you have finished the book there is still a lot to learn. Not that I am trying to scare you, just point out that in this kind of area there is always more to learn.
PHP release updates fairly often so you need to pay attention to what they are changing and how it may impact your code.
Definately worth the read if you are looking to get into this area. Get it now whilst it is at it's most up to date position.
Don't forget to visit sitepoint.com who publish the book, there is a huge forum, lots of tutorials and more to help you out.