I bought this book as a complete beginner with no prior experience of languages other than HTML. The book is easy to read and explains concepts well. There are extensive examples which are shown as complete scripts as well as explained in narrative form alongside.
On purchasing the book I was slightly apprehensive that topics would be covered too quickly, but this was not the case at all. If anything, I found that once I had a good grasp of the basics I was able to skip over several of the examples.
As well as a walkthrough guide to the capabilities and functionality of PHP and MySQL, this book also includes two comprehensive examples of web applications. These could be used as 'off-the-shelf' applications for your own website if required with very little adaptation.
As mentioned in other reviews, the only criticism is that security concerns are not introduced from the outset, but are only addressed in a single chapter towards the end of the book. This is far from ideal as it requires you to revisit previous subjects, adjusting your code to make it more secure. That said, it could be argued that to present security concerns throughout could overcomplicate the earlier chapters, particulary those introducing difficult concepts for the first time.
Overall: Highly recommended although an intermediate-level knowledge of HTML is a prerequisite.