Introduction

Welcome to Sams Teach Yourself PHP, MySQL, and Apache All in One, Fifth Edition. I’m happy to report that the PHP language and its community of developers and users continues to grow every day—hence the need for a refresh of this book.

Since the previous edition of this book, the “end of life” of PHP 4 finally set in; with the help of a GoPHP5 initiative, web hosting providers and application developers migrated their services and code away from PHP 4–specific features and coding practices and into the world of PHP 5—full of speed and an even greater feature set. As with the previous edition, all the code in this edition is based on the latest version of PHP available at the time of this writing (5.4.0, in this case).

Some of you ...

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