The relationship between Yii framework and MVC pattern

Yii framework is a lightweight PHP framework, and the MVC pattern is considered an excellent software architecture pattern. In the Yii framework, the MVC pattern has been widely used. It helps developers better organize and manage code, and follow good programming habits to implement efficient web applications.

What is the MVC pattern?
MVC pattern is a commonly used software architecture pattern that was originally used in the development of desktop applications. This pattern divides your application's code into three main components: models, views, and controllers. The model handles application data, the view handles user interface display, and the controller manages the interaction between the model and view. The advantage of this pattern is that it promotes loose coupling of the application, making it easy to extend and maintain.

How does the MVC pattern of Yii framework work?
The Yii framework uses the MVC pattern to divide the application's code into three different components: model, view and controller. The implementation of the MVC pattern in the Yii framework is as follows:

Model (Model)
The model is the data processing center of the application. In the Yii framework, a model is a separate class that is mainly responsible for finding and manipulating data in the database. The model handles the access logic to the database and the business logic in the application separately, making the code more reusable and scalable.

View(View)
View is responsible for presenting data. In the Yii framework, a view is usually an HTML file, and the HTML is dynamically generated by using specific syntax such as PHP's view file. Views present the data provided by the controller into an interface that the user can understand.

Controller(Controller)
The controller is the bridge between the application and the user. In the Yii framework, a controller is a separate class that is primarily responsible for handling all user requests and handling interactions between models and views. The controller maintains the current state of the application and responds to any events during processing.

The MVC pattern makes the development and maintenance of code in the Yii framework easier, modular, and easy to extend. In addition, the Yii framework also provides numerous methods and functions to simplify programming in the MVC pattern.

Summary
The MVC pattern and Yii framework complement each other to build an efficient, reusable and scalable web application framework. When developing using the Yii framework, developers must understand the MVC pattern and organize and manage code according to this pattern. This will allow developers to better manage their code and simplify code maintenance and updates.

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