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CodeIgniter is a PHP full-stack web framework that is light, fast, flexible and secure.More information can be found at theofficial 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 inCodeIgniter 4 on the forums.

TheUser Guide is the primary documentation for CodeIgniter 4.

You will also find thecurrentin-progress User Guide.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 theAPI documentation for the framework components.

index.php is no longer in the root of the project! It has been moved inside thepublic folder,for better security and separation of components.

This means that you should configure your web server to "point" to your project'spublic folder, andnot 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 enterpublic/..., as the rest of your logic and theframework are exposed.

Please read the user guide for a better explanation of how CI4 works!

CodeIgniter is developed completely on a volunteer basis. As such, please give up to 7 daysfor 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.

If you raise an issue here that pertains to support or a feature request, it willbe 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 alreadybeen 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 orapproved work packages.

Do not use a PR as a form of feature request.Unsolicited contributions will only be considered if they fit nicelyinto the framework roadmap.Remember that some components that were part of CodeIgniter 3 are being movedto optional packages, with their own repository.

Weare 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 theContributing to CodeIgniter.

CodeIgniter has had thousands on contributions from people since its creation. This project would not be what it is without them.

Made withcontrib.rocks.

PHP version 8.1 or higher is required, with the following extensions installed:

• intl
• mbstring

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

• json (enabled by default - don't turn it off)
• mysqlnd if you plan to use MySQL
• libcurl if you plan to use the HTTP\CURLRequest library

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