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How to setup CodeIgniter?

Setting up CodeIgniter, a popular PHP framework, involves several steps. Hereand#39;s a general guide to help you get started:

  1. Prerequisites:

    • You need a web server environment with PHP and a database (such as MySQL or PostgreSQL) installed. You can use local development tools like XAMPP, WAMP, MAMP, or a cloud-based service like AWS, DigitalOcean, or Heroku.

  2. Download CodeIgniter:

  3. Extract Files:

    • Extract the downloaded CodeIgniter package to your web serverand#39;s document root directory or a directory accessible by your web server.

  4. Configuration:

    • Rename the andquot;application/config/config.phpandquot; file to andquot;config.php.andquot;
    • Open the andquot;config.phpandquot; file and set the base URL according to your projectand#39;s URL. For example: 
      
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      $config[and#39;base_urland#39;] = and#39;http://localhost/your_project_folder/and#39;;

  5. Database Configuration:

    • Rename the andquot;application/config/database.phpandquot; file to andquot;database.php.andquot;
    • Open the andquot;database.phpandquot; file and configure your database settings, including hostname, username, password, and database name.

  6. Create a Controller:

    • Create a controller in the andquot;application/controllersandquot; directory. Controllers handle HTTP requests and contain the logic of your application.

    • Example: Create a file named andquot;Welcome.phpandquot; with a class named andquot;Welcomeandquot; that extends the CI_Controller.

      
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      andlt;?php class Welcome extends CI_Controller { public function index() { echo andquot;Hello, CodeIgniter!andquot;; } }

  7. Routing:

    • Configure routing in andquot;application/config/routes.phpandquot; to specify which controller and method should be invoked when a specific URL is accessed.

    • Example: To route the default URL to the andquot;Welcomeandquot; controllerand#39;s andquot;indexandquot; method, add the following line:

      
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      $route[and#39;default_controllerand#39;] = and#39;welcomeand#39;;

  8. Access Your Application:

    • Open a web browser and navigate to your CodeIgniter projectand#39;s base URL (e.g., http://localhost/your_project_folder/).
    • You should see the output of your controllerand#39;s method.

  9. Additional Configuration:

    • You can further customize and configure CodeIgniter by modifying files in the andquot;application/configandquot; directory.

  10. Build Your Application:

    • Start building your application by creating models, views, and additional controllers as needed.
    • CodeIgniter follows the MVC (Model-View-Controller) architecture, so itand#39;s a good practice to organize your code accordingly.

This is a basic setup guide for CodeIgniter. Depending on your projectand#39;s complexity, you may need to install additional libraries, configure routes, set up database tables, and create views to build a complete web application. Be sure to refer to the official CodeIgniter documentation (https://codeigniter.com/user_guide/) for more detailed information and tutorials.