CodeIgniter is a powerful PHP framework with a very small footprint, built for developers who need a simple and elegant toolkit to create full-featured web applications.

CodeIgniter 3 is the legacy version of the framework, intended for use with PHP 5.6+. This version is in maintenance, receiving mostly just security updates, and the current version is 3.1.13.

Aug 2, 2025 · It will show you how a basic CodeIgniter application is constructed in a step-by-step fashion. If you are not familiar with PHP, we recommend that you check out the W3Schools …

CodeIgniter lets you creatively focus on your project by minimizing the amount of code needed for a given task.

Getting Started Installation Composer Installation Manual Installation Running Your App Troubleshooting Deployment Change Logs Upgrading From a Previous Version CodeIgniter …

We recommend the Composer installation because it keeps CodeIgniter up to date easily. If you would like the simple “download & go” install that CodeIgniter 3 is known for, choose the …

Introduction CodeIgniter Overview Getting Started CodeIgniter at a Glance Supported Features Application Flow Chart Model-View-Controller Architectural Goals

CodeIgniter lets you creatively focus on your project by minimizing the amount of code needed for a given task. Who is CodeIgniter For? CodeIgniter is right for you if: You want a framework …

This tutorial is intended to introduce you to the CodeIgniter framework and the basic principles of MVC architecture. It will show you how a basic CodeIgniter application is constructed in step …

CodeIgniter v3.1.9 CodeIgniter v3.1.8 CodeIgniter v3.1.7 CodeIgniter v3.1.6 CodeIgniter v3.1.5 CodeIgniter v3.1.4 CodeIgniter v3.1.3 CodeIgniter v3.1.2 CodeIgniter v3.1.1 CodeIgniter …