Welcome, reader, to the world of PHP. You're about to learn to use the most powerful web development language that can be found, and, what's more, you will do so with the minimum of fuss.
I have written this book with the goal of making the task of learning PHP something fun that you don't have to worry about. As such, you will find lots of information for newcomers, even those who have not programmed much before. On the other end of the scale, I have worked hard to put in this book lots of information on advanced functionality in PHP - if you're a veteran user looking to take your PHP skills above and beyond where they are right now, I hope you'll find there is lots to be had here.
My goal for this book has been to produce something you can read in whatever order you want. Once you have the basics down, I encourage you to flick through the table of contents, find something that interests you most, and start reading from there.