This book is aimed at those who want to learn PHP, even if they don't have any previous programming or scripting experience. You can even use this book to learn PHP as a first programming language if you do not have any previous experience.
If you have some previous programming experience but have not written for the web before, you can use this book to learn about the PHP language and how to apply programming techniques to the web environment.
This book does not teach you HTML. Although knowledge of HTML is not a prerequisite, having published web pages in the past will be an advantageeven if you do not usually hand-code HTML.