Description
CodeIgniter is a PHP full-stack web framework that is light, fast, flexible and secure.
More information can be found at the official site.
This repository holds the source code for CodeIgniter 4 only.
Version 4 is a complete rewrite to bring the quality and the code into a more modern version,
while still keeping as many of the things intact that has made people love the framework over the years.
More information about the plans for version 4 can be found in the announcement on the forums.
CodeIgniter 4 Development alternatives and similar libraries
Based on the "Frameworks" category.
Alternatively, view CodeIgniter4 alternatives based on common mentions on social networks and blogs.
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Laravel 5
Laravel is a web application framework with expressive, elegant syntax. We’ve already laid the foundation for your next big idea — freeing you to create without sweating the small things. -
CodeIgniter
Open Source PHP Framework (originally from EllisLab) -
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Yii2
Yii 2: The Fast, Secure and Professional PHP Framework -
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Slim Framework
Slim is a PHP micro framework that helps you quickly write simple yet powerful web applications and APIs. -
CakePHP
CakePHP: The Rapid Development Framework for PHP - Official Repository -
Phalcon
High performance, full-stack PHP framework delivered as a C extension. -
Zend Framework 2
Another framework comprised of individual components (ZF2). -
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FuelPHP
FuelPHP v1.x is a simple, flexible, community driven PHP 5.3+ framework, based on the best ideas of other frameworks, with a fresh start! FuelPHP is fully PHP 7 compatible. -
Spiral Framework
High-Performance PHP Framework for large scale applications -
MopaBootstrapBundle
Easy integration of twitters bootstrap into symfony2 -
Kraken PHP
Asynchronous & Fault-tolerant PHP Framework for Distributed Applications. -
Opulence
A simple, secure, and scalable PHP application framework -
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Swiftlet
Quite possibly the smallest MVC framework you'll ever use. -
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Redaxscript
A modern, ultra lightweight and rocket fast Content Management System -
PHP-Spellchecker
🐘🎓📝 PHP Library providing an easy way to spellcheck multiple sources of text by many spellcheckers -
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CleverStyle Framework
Simple, scalable, fast and secure full-stack PHP framework -
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OpenAPI PSR-7 Message (HTTP Request/Response) Validator
It validates PSR-7 messages (HTTP request/response) against OpenAPI specifications -
PHP-GLFW
🪐A fully-featured OpenGL and GLFW extension for PHP. 🔋Batteries included (Math Functions, Texture Loaders, etc..) -
Quantum PHP Framework (project)
Quantum PHP Project -
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Quantum PHP Framework (core)
Quantum PHP Framework -
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ReactPHP Promises Testing
PHPUnit assertions for testing ReactPHP promises -
Slim3 GAE Skeleton
Slim 3 skeleton working with Google App Engine include cron configuration. -
Aura Framework
A framework built from independent components. -
Symfony 3
A framework comprised of individual components (SF3).
Managed Cloud Hosting Platform
* Code Quality Rankings and insights are calculated and provided by Lumnify.
They vary from L1 to L5 with "L5" being the highest.
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Popular Comparisons
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CodeIgniter 4 DevelopmentvsYii2
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CodeIgniter 4 DevelopmentvsLaravel 5
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README
CodeIgniter 4 Development
What is CodeIgniter?
CodeIgniter is a PHP full-stack web framework that is light, fast, flexible and secure. More information can be found at the official site.
This repository holds the source code for CodeIgniter 4 only. Version 4 is a complete rewrite to bring the quality and the code into a more modern version, while still keeping as many of the things intact that has made people love the framework over the years.
More information about the plans for version 4 can be found in the announcement on the forums.
Documentation
The User Guide is the primary documentation for CodeIgniter 4.
The current in-progress User Guide can be found here. As with the rest of the framework, it is a work in progress, and will see changes over time to structure, explanations, etc.
You might also be interested in the API documentation for the framework components.
Important Change with index.php
index.php is no longer in the root of the project! It has been moved inside the public folder, for better security and separation of components.
This means that you should configure your web server to "point" to your project's public folder, and not to the project root. A better practice would be to configure a virtual host to point there. A poor practice would be to point your web server to the project root and expect to enter public/..., as the rest of your logic and the framework are exposed.
Please read the user guide for a better explanation of how CI4 works!
Repository Management
CodeIgniter is developed completely on a volunteer basis. As such, please give up to 7 days for your issues to be reviewed. If you haven't heard from one of the team in that time period, feel free to leave a comment on the issue so that it gets brought back to our attention.
We use GitHub issues to track BUGS and to track approved DEVELOPMENT work packages. We use our forum to provide SUPPORT and to discuss FEATURE REQUESTS.
If you raise an issue here that pertains to support or a feature request, it will be closed! If you are not sure if you have found a bug, raise a thread on the forum first - someone else may have encountered the same thing.
Before raising a new GitHub issue, please check that your bug hasn't already been reported or fixed.
We use pull requests (PRs) for CONTRIBUTIONS to the repository. We are looking for contributions that address one of the reported bugs or approved work packages.
Do not use a PR as a form of feature request. Unsolicited contributions will only be considered if they fit nicely into the framework roadmap. Remember that some components that were part of CodeIgniter 3 are being moved to optional packages, with their own repository.
Contributing
We are accepting contributions from the community! It doesn't matter whether you can code, write documentation, or help find bugs, all contributions are welcome.
Please read the Contributing to CodeIgniter.
CodeIgniter has had thousands on contributions from people since its creation. This project would not be what it is without them.
Made with contrib.rocks.
Server Requirements
PHP version 7.4 or higher is required, with the following extensions installed:
Additionally, make sure that the following extensions are enabled in your PHP:
- json (enabled by default - don't turn it off)
- xml (enabled by default - don't turn it off)
- mysqlnd
Running CodeIgniter Tests
Information on running the CodeIgniter test suite can be found in the [README.md](tests/README.md) file in the tests directory.
*Note that all licence references and agreements mentioned in the CodeIgniter 4 Development README section above
are relevant to that project's source code only.