CodeIgniter 3
PHP framework for building web applications, the CodeIgniter 3 branch, in maintenance with security updates.
CodeIgniter 3 is the 3.x line of the CodeIgniter PHP framework, documented in the CodeIgniter 3 user guide. It is installed by downloading the package and uploading its folders to a server, with the index.php file at the web root, so PHP handles each request on the server.
The requirements page lists the supported databases, among them MySQL, PostgreSQL, SQLite, Oracle and Microsoft SQL Server.
Worth knowing
The download page calls CodeIgniter 3 the legacy version. It is in maintenance and receives mostly security updates, and CodeIgniter 4 is the current version of the framework.
Identity
- Status
- Stub
- Maintainer
- CodeIgniter Foundation3
- Maintained by
- Foundation
- First release
- 20064
Rendering and deploy
- Runs as
- Per request7
- Install with
- manual download7
Releases
Adoption
Sources
- 2026-10-20: links, Written in, License, GitHub stars
api.github.com/repos/bcit-ci/CodeIgniter - 2026-10-20: links, Runtime, Minimum runtime
codeigniter.com/download - 2026-10-20: Maintainer
codeigniter.com/ - 2026-10-20: First release
codeigniter.com/userguide3/changelog.html - 2026-10-20: Categories
github.com/bcit-ci/CodeIgniter/blob/3.1.13/composer.json - 2026-10-20: Databases
codeigniter.com/userguide3/general/requirements.html - 2026-10-20: Install with, Runs as
codeigniter.com/userguide3/installation/index.html - 2026-10-20: Current major version, Last release
repo.packagist.org/p2/codeigniter/framework.json - 2026-10-20: Contributors
api.github.com/repos/bcit-ci/CodeIgniter/contributors - 2026-10-20: Packagist downloads
packagist.org/packages/codeigniter/framework.json - 2026-10-25: Dependent repositories, Dependent packages
packages.ecosyste.ms/api/v1/registries/packagist.org/packages/codeigniter%2Fframework - 2026-10-25: Packagist downloads a month
packagist.org/packages/codeigniter/framework/stats.json