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Title: CodeIgniter  
Author: World Heritage Encyclopedia
Language: English
Subject: FuelPHP, Laravel, Scaffold (programming), Codelobster, Agavi
Publisher: World Heritage Encyclopedia


CodeIgniter logo
Original author(s) EllisLab, Inc.
Developer(s) British Columbia Institute of Technology
Initial release February 28, 2006 (2006-02-28)
Stable release 2.2.0 / June 5, 2014 (2014-06-05)
Preview release 3.0-dev
Development status Active
Written in PHP
Operating system Cross-platform
Type Web application framework
License MIT License

CodeIgniter is an open source rapid development web application framework, for use in building dynamic web sites with PHP. The first public version of CodeIgniter was released on February 28, 2006, and the latest stable version 2.2.0 was released June 5, 2014.[1]

CodeIgniter is loosely based on the popular Model-View-Controller development pattern. While controller classes are a necessary part of development under CodeIgniter, models and views are optional.[2]

CodeIgniter is most often noted for its speed when compared to other PHP frameworks.[3][4][5] In a critical take on PHP frameworks in general, PHP creator Rasmus Lerdorf spoke at frOSCon in August 2008, noting that he liked CodeIgniter "because it is faster, lighter and the least like a framework."[6]

CodeIgniter's source code is maintained at GitHub,[7] and as of the preview version 3.0-dev, is certified open source software licensed with the MIT License. Versions of CodeIgniter prior to 3.0 are licensed under a proprietary Apache/BSD-style open source license.[8]

The decision to switch to an OSL license sparked some community controversy,[9] especially about the GPL incompatibility of the new license, to which EllisLab has responded with a series of articles entitled Software License Awareness Week.[10]

On July 9, 2013, EllisLab announced that it is seeking a new owner for its CodeIgniter, stating lack of involvement as a reason.[11] On October 6, 2014, EllisLab announced that CodeIgniter will continue its development under the stewardship of the British Columbia Institute of Technology.[12]


  1. ^ "CodeIgniter User Guide: Change Log". Retrieved 2014-08-05. 
  2. ^ "CodeIgniter User Guide: Models". Retrieved 2014-08-05. 
  3. ^ "7 Best PHP Frameworks". 2014-02-12. 
  4. ^ "PHP Frameworks Benchmarks". Retrieved 2014-08-05. 
  5. ^ "Benchmark update: Cake vs. CodeIgniter vs. Kohana". 2008-09-03. Retrieved 2014-08-05. 
  6. ^ "Rasmus Lerdorf: PHP Frameworks? Think Again". 2008-08-29. Retrieved 2014-08-05. 
  7. ^ "bcit-ci/CodeIgniter · GitHub". Retrieved 2014-10-29. 
  8. ^ "CodeIgniter License Agreement". Retrieved 2014-08-05. 
  9. ^ "CodeIgniter changes license to OSL 3.0?". Forum. 2011-10-21. Retrieved 2014-08-05. 
  10. ^ "Software License Awareness Week". 2011-10-31. Retrieved 2012-12-28. 
  11. ^ EllisLab Seeking New Owner for CodeIgniter
  12. ^ "Your Favorite PHP Framework, CodeIgniter, Has a New Home". EllisLab Blog. EllisLab. Retrieved 16 October 2014. 
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