On freegrok.com a new review of an APress PHP-related book has been posted, a look at W. Jason Gilmore's "Beginning PHP and MySQL: From Novice to Professional, Third Edition".
Walking through your local bookstore will show that there is definitely no shortage of books related to PHP and MySQL. These ubiquitous technologies have been many a beginner's foray into the world of web development. Since both are free and widely supported it's a safe bet that the software you create can be used in almost any circumstance with relative ease. Beginning PHP and MySQL: From Novice to Professional, Third Edition is a good resource to get you started on your way.
The reviewer breaks down the chapters of the book and points out two chapters (web services and MVC with the Zend Framework) that he though were noteworthy for budding developers to look in to.
All in all W. Jason Gilmore has done an excellent job of bringing a wide ranging topics into a manageable size and retaining much of the value for later use.