amazon.com:

Concentrating on PHP script programming, this book considers Web security and optimization from the hacker’s point of view. The many utilities used by hackers and written with PHP, examples of secure applications and algorithms for scripts, new ways of writing real hacking programs for the Web and nonstandard PHP programming techniques and possibilities. Programmers will also learn what tricks to expect from a hacker and how to create the most effective protection system possible are all discussed in detail.

amazon.com:

Concentrating on PHP script programming, this book considers Web security and optimization from the hacker’s point of view. The many utilities used by hackers and written with PHP, examples of secure applications and algorithms for scripts, new ways of writing real hacking programs for the Web and nonstandard PHP programming techniques and possibilities. Programmers will also learn what tricks to expect from a hacker and how to create the most effective protection system possible are all discussed in detail.