Codeigniter 4 - Helpers with Examples What is a Helper? - A Helper is a file that contains a collection of functions that assist with common tasks. - Helpers are stored in the app/Helpers directory. Creating a Helper - Create a new file in the app/Helpers directory (e.g. my_helper.php). - Add functions to the file...

Codeigniter 4 - Views with Examples What is a View? - A View is a file that contains the HTML and PHP code for displaying data to the user. - Views are stored in the app/Views directory. Creating a View - Create a new file in the app/Views directory (e.g. user_view.php). - Add HTML and...

Codeigniter 4 - URL's with Examples URL Basics - URLs in CodeIgniter 4 are handled by the URI class. - The URI class provides methods for working with URLs. URL Structure - CodeIgniter 4 URLs follow the following structure: `(link unavailable) - controller is the name of the controller class. - method is the name...

Codeigniter 4 - Controllers with examples What is a Controller? - A Controller is a class that acts as an intermediary between the Model and View. - It receives input from the user, interacts with the Model to perform business logic, and passes data to the View for rendering. Creating a Controller - Create a...

Codeigniter 4 - MVC Design Pattern with examples Model - Purpose: Represents the data and business logic of the application - Responsibilities: - Interact with the database - Perform calculations and data processing - Validate data - Example: app/Models/UserModel.php <?php namespace App\Models; use CodeIgniter\Model; class UserModel extends Model { protected $table = 'users'; protected $primaryKey...

Application Structure or Folder Structure in Codeigniter 4 Folder Structure in CodeIgniter 4 CodeIgniter 4 has a specific folder structure that helps to organize your application files and folders. Here is an overview of the folder structure: App Folder - Purpose: Contains all application-specific files and folders - Subfolders: - Config: Configuration files - Controllers:...

Server Requirements to Run Codeigniter 4 - PHP 7.2 or higher: CodeIgniter 4 requires PHP 7.2 or higher to run. This ensures that you have the latest security patches and features. - MySQL 5.6 or higher: CodeIgniter 4 supports MySQL 5.6 or higher, as well as other databases like PostgreSQL and SQLite. - Apache 2.4...