This book steps you through the main features of CodeIgniter in a systematic way, explaining them clearly with illustrative code examples. This book is for developers who are new to CodeIgniter. Basic skills in PHP and MySQL are required, but only rudimentary object-oriented knowledge is required. If you're looking for a better way to develop PHP applications, or want to find out more about the CodeIgniter framework as a viable option for one of your own projects, this book will help you.
Not a bad book, but the examples are spotty. If you don't have a solid understanding of PHP, I suspect it would be more than a little frustration to try and spot the small errors in the provided sample code. Additionally, this deals with a release that is somewhat out of date.