In fact, neither of them is suitable for introduction, but for improvement and reference books.

Moreover, in these two books, PHP and MySQL Web Development; This book is better, but the problem is that some translations are incomprehensible.

If you want to get started, you'd better find an introductory book. This book (22-hour video) is recommended here.

At the same time, it is strongly recommended that you study online. PHP 100。 COM is a very good PHP website, with excellent videos from introduction to development.

Generally speaking, I think the introductory video tutorial +PHP 100.com in a book is the best choice for beginners!