CodeIgniter is a
free and open-source software
Free and open-source software (FOSS) is software available under a license that grants users the right to use, modify, and distribute the software modified or not to everyone free of charge. FOSS is an inclusive umbrella term encompassing free ...
rapid development
web framework
A web framework (WF) or web application framework (WAF) is a software framework that is designed to support the development of web applications including web services, web resources, and web APIs. Web frameworks provide a standard way to build a ...
, for use in building dynamic web sites with
PHP.
Popularity
CodeIgniter is loosely based on the popular
model–view–controller
Model–view–controller (MVC) is a software architectural pattern commonly used for developing user interfaces that divides the related program logic into three interconnected elements. These elements are:
* the model, the internal representat ...
(MVC) development pattern. While controller classes are a necessary part of development under CodeIgniter, models and views are optional. CodeIgniter can be also modified to use Hierarchical Model View Controller (HMVC) which allows the developers to maintain modular grouping of Controller, Models and View arranged in a sub-directory format.
CodeIgniter is most often noted for its speed when compared to other PHP frameworks. 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.''"
Source code and license
CodeIgniter's source code is maintained at
GitHub
GitHub () is a Proprietary software, proprietary developer platform that allows developers to create, store, manage, and share their code. It uses Git to provide distributed version control and GitHub itself provides access control, bug trackin ...
, and as of the preview version 3.0rc, is certified open source software licensed with the
MIT License
The MIT License is a permissive software license originating at the Massachusetts Institute of Technology (MIT) in the late 1980s. As a permissive license, it puts very few restrictions on reuse and therefore has high license compatibility.
Unl ...
. Versions of CodeIgniter prior to 3.0.0 are licensed under a proprietary Apache/BSD-style open source license.
A 2011 decision to switch licensing to the
Open Software License (OSL) sparked some community controversy, especially about the
GPL incompatibility of the new license, to which EllisLab has responded with a series of articles entitled Software License Awareness Week.
History
The first public version of CodeIgniter was released by
EllisLab on February 28, 2006.
On July 9, 2013,
EllisLab announced that it was seeking a new owner for CodeIgniter, citing a lack of resources to give the framework the attention they felt it deserved. On October 6, 2014, EllisLab announced that CodeIgniter would continue development under the stewardship of the
British Columbia Institute of Technology.
As of October 23, 2019, with the CodeIgniter Foundation taking the reins, CodeIgniter is no longer under the care of the British Columbia Institute of Technology.
CodeIgniter 4 was released On February 24, 2020, the birthday of Jim Parry, the project lead of CodeIgniter 4, and who died on January 15, 2020.
Since then, the project continues with another lead.
See also
*
Comparison of web frameworks
References
External links
*
Codeigniter en español
{{PHP
Free software programmed in PHP
PHP frameworks
Web frameworks
Software using the MIT license
es:EllisLab#Code Igniter