The Vision Spark

CodeIgnier

An open source rapid development web application development, to be used in formulating PHP websites. “Its goal is to enable [developers] to develop projects much faster than writing code from scratch, by providing a rich set of libraries for commonly needed tasks, as well as a simple interface and logical structure to access these libraries.” It is based on Model-View- Controller-development pattern. The first public version of CodeIgniter was released on February 28, 2006, and the latest stable version 2.1.4 was released July 8, 2013. While view and controller classes are a necessary part of development under CodeIgniter, models are optional.
Codelgnitor is faster, lighter and the least like a framework. It is most prominent software for its speed. CodeIgniter’s source code is maintained at GitHub, and as of the preview version 3.0-dev, is certified open source software licensed with the Open Software License (“OSL”) v. 3.0. Versions of CodeIgniter prior to 3.0 are licensed under a proprietary Apache/BSD-style open source license. On July 9th 2013, EllisLab announced that it is seeking a new owner for its CodeIgniter, stating lack of involvement as a reason. It is not clear whether CodeIgniter will remain the backbone of its ExpressionEngine software.
CodeIgniter is an Application Development Framework – a toolkit – for people who build web sites using PHP. Its goal is to enable you to develop projects much faster than you could if you were writing code from scratch, by providing a rich set of libraries for commonly needed tasks, as well as a simple interface and logical structure to access these libraries. CodeIgniter lets you creatively focus on your project by minimizing the amount of code needed for a given task
CodeIgniter is installed in four steps:
1.    Unzip the package.
2.    Upload the CodeIgniter folders and files to your server. Normally the index.php file will be at your root.
3.    Open the application/config/config.php file with a text editor and set your base URL.
4.    If you intend to use a database, open the application/config/database.php file with a text editor and set your database settings.
If you wish to increase security by hiding the location of your CodeIgniter files you can rename the system folder to something more private. If you do rename it, you must open your main index.php file and set the $system_folder variable at the top of the page with the new name you’ve chosen.