A little about CodeIgniter :

CodeIgniter (CI) is a PHP framework that is opensource.

What is a framework? Framework is a collection of many modules as well as in the form of class libraries that can be reused to create a larger web application modules using an existing class. CI was developed by the developers of EllisLab, Inc.. and can be downloaded free of charge at the address http://codeigniter.com/downloads/.

Some advantages of CodeIgniter (CI) were:

* Equity opensource: One of the most obvious advantages of the CI is a framework can be used and developed legally.

* Performance is very light: at CI Class library is only used when requested by the user, so it is only used when needed. This causes very mild CI if executed.

* Using the MVC model: MVC stands for "Model View Controller", this model separates the program logic files, databases and display.

* Class library complete: CI packaged in a set of class libraries that are reliable enough to complete the process of making a website, such as database access, form validation, session handling, sending email, etc..

* Many communities: the number of CI community, allows us to share knowledge and information about the CI between users with other users.

* Documentation is complete: CI have a good and complete documentation to help beginners who want to learn CI. Documentation available on the official website can be found on page CI http://codeigniter.com/user_guide/.

* Etc..

Some of the features provided CodeIgniter (CI), among others:

* Form validation and data

* Security and XSS filter

* Class for sending e-mail, attachments, HTML / Text email, etc..

* Data Encryption

* Class file uploads

* Paging page

* Library for manipulating images

* Shopping chart

* Friendly URL

* Class for calendar date

* Etc..

To learn more about CI's you can see the video tutorial below http://codeigniter.com/tutorials/.