CodeIgniter

CodeIgniter is an open-source PHP web application framework designed for developers who need a simple and elegant toolkit to create full-featured web applications. It follows the Model-View-Controller (MVC) architectural pattern and emphasizes performance, minimal configuration, and a small footprint. It provides libraries for common tasks like database access, form validation, and session management, making it suitable for rapid development.

Also known as: CI, Code Igniter, CodeIgniter PHP, CodeIgniter Framework, Codeigniter (common misspelling)

🧊Why learn CodeIgniter?

Developers should learn CodeIgniter when building lightweight, high-performance PHP web applications that require minimal server overhead and quick setup, such as small to medium-sized business websites, APIs, or prototypes. It's particularly useful for projects where simplicity and speed are prioritized over extensive built-in features, as it offers a straightforward approach with clear documentation and a gentle learning curve compared to more complex frameworks.

See how it ranks →

Compare CodeIgniter

CodeIgniter vs Laravel→CodeIgniter vs Symfony→CodeIgniter vs Cakephp→

Learning Resources

CodeIgniter User Guide

CodeIgniter 4 Tutorial for Beginners

CodeIgniter Tutorial on TutorialsPoint

Build a Blog with CodeIgniter 4

CodeIgniter 4 Documentation on GitHub

Related Tools

Php Mvc Architecture Mysql Restful Apis Composer

Alternatives to CodeIgniter

Laravel Symfony Cakephp

Other PHP Frameworks

.NET Core is a free, open-source, cross-platform framework for building modern applications, developed by Microsoft. It supports the development of web apps, microservices, APIs, and cloud-based solutions using languages like C#, F#, and Visual Basic. It is designed to be modular, high-performance, and runs on Windows, Linux, and macOS.

.NET Framework is a proprietary software framework developed by Microsoft that runs primarily on Windows. It provides a large class library called Framework Class Library (FCL) and language interoperability across several programming languages, enabling developers to build a wide range of applications, including desktop, web, and mobile. It includes features like memory management, security, and exception handling, and supports languages such as C#, VB.NET, and F#.

.NET Framework is a proprietary software framework developed by Microsoft that runs primarily on Windows. It provides a large class library called Framework Class Library (FCL) and language interoperability across several programming languages, enabling developers to build a wide range of applications, including desktop, web, and mobile. It includes features such as memory management, security, and exception handling, and supports languages like C#, VB.NET, and F#.

A-Frame is an open-source web framework for building virtual reality (VR) experiences that run directly in web browsers. It uses HTML-like syntax with custom elements to create 3D and VR scenes, abstracting away the complexity of WebGL and WebXR APIs. It is built on top of Three.js and is widely used for creating immersive web-based VR content.

Active Record is an object-relational mapping (ORM) framework that provides an abstraction layer between a database and application code, allowing developers to interact with database records as objects. It follows the Active Record pattern, where each database table corresponds to a class, and each row corresponds to an instance of that class, with methods for CRUD (Create, Read, Update, Delete) operations. It is most famously implemented in Ruby on Rails but has inspired similar frameworks in other languages.

ADO.NET is a data access framework in the .NET ecosystem that provides a set of classes for connecting to and interacting with data sources such as databases, XML files, and web services. It enables developers to perform CRUD operations, manage transactions, and handle data in a disconnected or connected manner through components like DataSet, DataReader, and DataAdapter. It serves as the core technology for data access in applications built with C#, VB.NET, and other .NET languages.