A list of most important features of CodeIgniter :
* It is open source under the MIT License.
* It is an open source framework and free to use.
* It is extremely light weighted.
* It has easy-to-read-and-use documentation
* It is based on the Model View Controller (MVC) pattern.
* It has full featured database classes and support for several platforms.
* It is extensible. You can easily extend the system by using your libraries, helpers.
