Open Source PHP Framework (originally from EllisLab)
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jim-parry Merge pull request #1675 from jim-parry/fix/testgroups
Add missing test group directives
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app Composer PSR4 namespaces are now part of the modules auto-discovery s… Jan 16, 2019
contributing Merge branch 'develop' into php-7.2 Jan 19, 2019
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system Merge branch 'develop' into php-7.2 Jan 19, 2019
tests Add missing test group directives Jan 19, 2019
user_guide_src Merge pull request #1674 from jim-parry/changelog-alpha.5 Jan 19, 2019
writable move .htaccess from per-directory in writable/{directory} to writable… Nov 20, 2018
.editorconfig [ci skip] Add editorconfig file. We will remove it whenever we packag… Mar 17, 2017
.gitattributes Add coveralls.phar and Remove php-coveralls at composer.json Jun 16, 2017
.gitignore .gitignore clean up Nov 21, 2018
.nojekyll Fix gh-pages deployment Sep 23, 2018
.travis.yml Merge branch 'develop' into php-7.2 Jan 19, 2019 Create Sep 9, 2018
DCO.txt Initial license Aug 27, 2015 Create Sep 9, 2018 Merge branch 'develop' into php-7.2 Jan 19, 2019
Vagrantfile.dist Rename Vagrantfile to Vagrantfile.dist Dec 6, 2018
composer.json Update PHP dependency to 7.2 Jan 18, 2019 Update PHP dependency to 7.2 Jan 18, 2019
env Honeypot Implementation - added honeypot config to env Jun 5, 2018
license.txt Update copyright to 2019 Dec 27, 2018
phpdoc.dist.xml Update & restructure contribution guide. May 27, 2016
phpunit.xml.dist Set baseURL to during testing by default. Dec 3, 2018
spark Update docs - managing apps Jan 3, 2019
stale.yml Create stale.yml Sep 25, 2018

CodeIgniter 4 Development

Build Status Coverage Status

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 alpha 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.

This is pre-release code and should not be used in production sites.

More information about the plans for version 4 can be found in the announcement on the forums.


The current in-progress documentation can be found here. As with the rest of the framework, it is currently a work in progress, and will see changes over time to structure, explanations, etc.

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! The user guide updating and deployment is a bit awkward at the moment, but we are working on it!

Repository Management

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.


We are accepting contributions from the community, specifically those identified as part of phase 2.

We will try to manage the process somewhat, by adding a "Help wanted" label to those that we are specifically interested in at any point in time. Join the discussion for those issues, and let us know if you want to take the lead for one of them.

We are not looking for out-of-scope contributions, only those that would be considered part of our controlled evolution!

Please read the Contributing to CodeIgniter section in the user guide

Server Requirements

PHP version 7.2 or higher is required, with the following extensions installed:

  • intl
  • libcurl if you plan to use the HTTP\CURLRequest library

Additionally, make sure that the following extensions are enabled in your PHP:

  • json (enabled by default - don't turn it off)
  • mbstring
  • mysqlnd
  • xml (enabled by default - don't turn it off)

Running CodeIgniter Tests

Information on running CodeIgniter test suite can be found in the file in the tests directory.