How to make mvc php

Make an MVC PHP app from scratch with this step-by-step guide and code example.

What is Model-View-Controller Architecture?

Model-View-Controller (MVC) is an architectural pattern used for developing software applications. It divides the application into three interconnected parts, which helps to separate the internal representations of information from the ways information is presented to and accepted from the user.

The Model is the central component of the pattern. It is the application's dynamic data structure, independent of the user interface. It directly manages the data, logic and rules of the application. It is the main part of the application that is responsible for maintaining the data of the application. It represents the business logic of the application.

The View is the user interface. It is responsible for displaying the data and the interface elements, such as text boxes, buttons, and list boxes, which the user interacts with. It is the presentation layer of the application that is responsible for rendering the information to the user in the form of a user interface.

The Controller mediates between the Model and the View. It is the part of the application that responds to user input, manipulates data using the Model, and ultimately chooses a View to render that responds to the user input. It is responsible for controlling the flow of the application, handling user input, and interacting with the Model and the View.

Example of MVC in PHP

Let's take a look at an example of how MVC works in PHP. We will create a simple application that displays a list of users. The application will have a Model, a View and a Controller.

Model

The Model is the part of the application that interacts with the database. It is responsible for retrieving and updating the data. In this example, the Model will be responsible for retrieving a list of users from the database.


// Database connection
$db = new PDO('mysql:host=localhost;dbname=testdb;charset=utf8', 'username', 'password');

// Get list of users
$stmt = $db->prepare("SELECT * FROM users");
$stmt->execute();
$users = $stmt->fetchAll();

View

The View is the part of the application that is responsible for displaying the data to the user. In this example, the View will be responsible for displaying a list of users.


<ul>
  <?php foreach($users as $user): ?>
    <li><?php echo $user['name']; ?></li>
  <?php endforeach; ?>
</ul>

Controller

The Controller is the part of the application that interacts with the Model and the View. In this example, the Controller will be responsible for loading the Model and the View.


// Load the model
include 'model.php';

// Load the view
include 'view.php';

This is a very simple example of how MVC works in PHP. In a real-world application, the Model and the View would be much more complex, and the Controller would be responsible for much more than just loading the Model and the View.

MVC is a powerful architectural pattern that can help to keep your application organized, maintainable and extensible. It can help to separate the different components of your application and make it easier to maintain and extend in the future.

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