Most of us just want to write applications that work well, and to do it as simply and easily as we can. This book is about CodeIgniter, a tool for making PHP easier to use.
If you need to produce results, if you think that the details and intricacies of coding are for geeks, then you should look at CodeIgniter (CI to its friends).
CI is free, lightweight, and simple to install, and it really does make your life much easier. Just read this chapter to find out how:
What CI can do for you
What is a 'framework' and how does CI fit in?
The open-source business model
Some disadvantages of CI (no, it's not perfect)
If you are already writing code in PHP, CodeIgniter will help you to do it ...