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CodeIgniter

CodeIgniter is an open-source web application framework written in PHP. It follows the Model-View-Controller (MVC) architectural pattern and is known for its small footprint, simple and elegant syntax, and extensive developer community.

Syntax

The syntax for CodeIgniter is relatively simple and follows the conventions of the PHP language. Typically, a CodeIgniter application will consist of a Controller file, a Model file, and a View file.

Example

Consider the following example of a code snippet in a CodeIgniter Controller file:

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class Welcome extends CI_Controller {

    public function index()
    {
        $this->load->view('welcome_message');
    }
}

In this example, a Controller file named Welcome is defined, which contains an index function. This function loads the welcome_message view file.

Explanation

CodeIgniter follows the MVC architectural pattern, where the Model represents the data and the business logic, the View represents the user interface, and the Controller handles user input and manages the interaction between the Model and the View.

In the example above, the Controller file defines a class named Welcome that extends the CI_Controller base class. It also defines an index function which loads the welcome_message view file.

Use

CodeIgniter is widely used for developing web applications in PHP because of its easy-to-learn syntax, quick setup, and lightweight footprint. It is commonly used for developing Content Management Systems (CMS), e-commerce websites, and other web-based applications.

Important Points

  • CodeIgniter is an open source web application framework for PHP.
  • It follows the Model-View-Controller (MVC) architectural pattern.
  • CodeIgniter is known for its small footprint, simple and elegant syntax, and extensive developer community.
  • CodeIgniter is widely used for developing web applications in PHP.

Summary

CodeIgniter is an open source web application framework for PHP that follows the Model-View-Controller (MVC) architectural pattern. It is known for its small footprint, simple and elegant syntax, and extensive developer community. CodeIgniter is widely used for developing web applications in PHP, including Content Management Systems (CMS) and e-commerce websites.

Introduction
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