yi framework usage tutorial exchange

YI Framework is a PHP framework based on MVC architecture designed to build fast and scalable web applications. It provides the following features: MVC architecture: Separate the data layer, user interface, and business logic. URL routing: Map the URL to the controller and the operation. Database Operations: Simplify database interaction through ActiveRecord mode. Form processing: Provides form verification and processing support. Extensibility: Can be extended by creating custom modules.

YI framework usage tutorial

getting Started

YI is a fast, scalable MVC framework based on PHP. It provides a powerful set of features that can be used to build a variety of web applications.

Install

1. Download the latest YI version.
2. Unzip and move to your web server folder.
3. Create a database and import sample data.
4. Configure the database connection information in the settings.php file.

Model, View, Controller (MVC)

YI adopts the MVC architecture:

• Model: The data layer representing the application.
• View: Responsible for rendering the user interface.
• Controller: Connects models and views and processes user input.

routing

YI Use the URL routing system to map URLs to controllers and operations. For example, http://example.com/post/create will map to the create operation of PostController .

Database operations

YI integrates an ActiveRecord mode that simplifies database operations. You just need to define the model class and use save() , find() and other methods for database interaction.

Form processing

YI provides form validation and processing support. You can easily define and validate form fields using FormModel class.

Extended

YI can be extended by creating custom modules. Modules allow you to add new features or modify existing features, such as:

• Add a new controller or model
• Integrated third-party library
• Create custom widgets

Example

Here is an example of creating a simple blog application:

 <code class="php">// 模型class Post extends \yii\db\ActiveRecord { } // 控制器class PostController extends \yii\web\Controller { public function actionCreate() { $post = new Post(); if ($post->load(Yii::$app->request->post()) && $post->save()) { return $this->redirect(['index']); } return $this->render('create', ['post' => $post]); } } // 视图echo $this->render('post/create', ['post' => $post]);</code>

More information

For more information about the YI framework, please refer to the official documentation: https://www.yiiframework.com/doc/guide/2.0/en/index.html

The above is the detailed content of yi framework usage tutorial exchange. For more information, please follow other related articles on the PHP Chinese website!