How to set up the controller in thinkphp

ThinkPHP is a popular PHP development framework that provides rich functions and easy-to-use controller settings, allowing developers to quickly build Web applications. This article will explain how to set up a controller in ThinkPHP.

1. Create a controller

In ThinkPHP, the controller is responsible for processing URL requests and rendering the corresponding views. To create a controller, you need to create a new PHP file in the controller subfolder under the application folder, such as Index.php. In this file, you need to define a class named Index, which inherits from ThinkPHP’s built-in controller base class Controller.

<?php
namespace app\controller;
use think\Controller;

class Index extends Controller {
    
    public function index(){
        //处理URL请求并渲染视图
    }
    
}

In the above code, namespace defines the namespace, use introduces the base class Controller, IndexClass inherits the Controller class. The index() method in the Index class handles URL requests, and you can call models, services and other classes in the method to execute business logic.

2. Add routing rules

In ThinkPHP, routing rules are used to convert the URL requested by the user into controllers and methods. To add routing rules, you need to create a new PHP file in the route folder, such as index.php. In this file, you need to configure a routing rule, for example:

<?php
use think\facade\Route;

Route::rule('index','Index/index');

This routing rule means that when the user requests the /index URL, it will be converted to IndexController's index() method.

3. Access Controller

Now, we have created the controller and added routing rules. If you want to access the Index controller, you can enter http://localhost/index in the browser address bar. This will trigger the Index controller's index() method and render the corresponding view.

Summary:

In ThinkPHP, setting up a controller is very simple. We only need to create a controller class that inherits from ThinkPHP's built-in controller base class and add corresponding routing rules to quickly build a web application.

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