Introduction to CodeIgniter | Lightweight PHP Framework for Rapid Development

CodeIgniter is a powerful PHP framework built for developers who need a simple and elegant toolkit to create full-featured web applications. It is known for its small footprint, high performance, and exceptional speed.

Key Features of CodeIgniter

MVC (Model-View-Controller) Architecture - Helps organize code into models (data), views (UI), and controllers (logic).

Lightweight and Fast - CodeIgniter is extremely fast compared to other PHP frameworks.

No Need for Template Engine - You can use plain PHP in your views.

Security - Built-in protections against CSRF, XSS, and SQL injection.

Simple Configuration - All configurations are PHP-based — no YAML or XML required.

Rich Set of Libraries - Comes with many libraries for sessions, form validation, email, database, etc.

Why Use CodeIgniter?

Beginner Friendly: Easy learning curve.
Documentation: Excellent official documentation.
No Composer Required: Can be used in shared hosting easily.
Community Support: Active forums and contributors.

Step 1: Install CodeIgniter

If you have Composer installed, run this in your terminal:

composer create-project codeigniter4/appstarter my_project

appstarter: CodeIgniter 4 starter project.

my_project: Folder where your app will be created.

Once installed, navigate to the project:

cd my_project
php spark serve

This command will start a local server at http://localhost:8080

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