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 $primaryKey...
Application Structure or Folder Structure in Codeigniter 4 Folder Structure in CodeIgniter 4 CodeIgniter 4 has a specific folder structure that helps to organize your application files and folders. Here is an overview of the folder structure: App Folder - Purpose: Contains all application-specific files and folders - Subfolders: - Config: Configuration files - Controllers:...
Server Requirements to Run Codeigniter 4 - PHP 7.2 or higher: CodeIgniter 4 requires PHP 7.2 or higher to run. This ensures that you have the latest security patches and features. - MySQL 5.6 or higher: CodeIgniter 4 supports MySQL 5.6 or higher, as well as other databases like PostgreSQL and SQLite. - Apache 2.4...
Introduction of Codeigniter 4 Overview of CodeIgniter 4 CodeIgniter 4 is a powerful and lightweight PHP framework that enables developers to build robust and scalable web applications quickly and efficiently. It is an open-source framework that provides a rich set of features and tools to simplify the development process. History of CodeIgniter 4 CodeIgniter was...
Autoloading in php with syntax and examples Autoloading is a mechanism in PHP that allows you to automatically include classes, interfaces, and traits without explicitly using require or include statements. Syntax: spl_autoload_register(function ($class) { // code to include the class file }); Example: spl_autoload_register(function ($class) { include 'classes/' . $class . '.php'; }); $obj =...
Magic methods in php with syntax and examples Magic methods are special methods in PHP classes that are automatically called when certain events occur. They start with double underscores (__) and are also known as "magic functions". List of Magic Methods: 1. __construct() - Called when an object is created 2. __destruct() - Called when...
CRUD Operations in PHP PDO with Exception Management with examples CRUD stands for Create, Read, Update, and Delete. These are the basic operations used to interact with a database. Create (Insert): - Inserts new data into the database Syntax: INSERT INTO table_name (column1, column2, ...) VALUES (value1, value2, ...); Example: $sql = "INSERT INTO users...
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