Some common methods of thinkphp3.2 framework

ThinkPHP is a very popular PHP development framework. As the version is updated, its various features and functions are constantly improved, providing developers with a more convenient and faster development method. This article will focus on introducing some common methods of the thinkphp3.2 framework to help developers better use the framework.

1. General method of model

The model is one of the most important components in ThinkPHP. We usually define some database operation methods in the model to facilitate us to obtain data from the database, such as:

// 这里的User是一个模型类
public function getUserInfo($userId)
{
    return $this->find($userId);
}

The above code defines a getUserInfo method, which can be obtained from the database based on the incoming user ID. Data corresponding to the user. In addition, the model class provides some commonly used basic methods, such as:

• find method: query one record;
• select method: query multiple records;
• add method: create a new record;
• save method: save the data of a record;
• delete method: delete a record.
  Of course, in addition to this, we can also define some other methods we need.

2. General methods of controller

In thinkphp, the controller plays the role of a bridge, connecting the view and the model. The controller not only handles user requests and responses, but also connects to the implementation of business logic. During the writing process of the controller, you need to pay attention to the following general methods:

1. __construct() method: The construction method of the controller, which can initialize some common properties and methods.

   class UserController extends Controller {
    public function __construct() {
        parent::__construct();
        $this->userModel = D('User');  // 实例化User模型类
    }
    // 其他方法 ...
   }

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   In the above code, the constructor method first calls the constructor method of the parent class, and then instantiates a User model class and assigns it to the attribute $userModel.

2. assign method: This method mainly assigns some data to the template so that it can be rendered in the view.

   public function index() {
    $list = $this->userModel->select();
    $this->assign('list', $list); // 将获取到的用户列表数据赋值给视图
    $this->display();
   }

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   In the above code, we call the select method of the User model to obtain the user list data, then assign it to the list variable in the view, and finally display the view through the display method.

3. View general method

The view is the final result presented to the user and is the interactive interface between the user and the application. In thinkphp, the rendering and display of views is also very fast, mainly including the following general methods:

1. display method: used to render and output the view to the browser.

   $this->display();

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2. fetch method: used to obtain the rendered content.

   $content = $this->fetch('index');

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3. assign method: used to assign data to the view.

   $this->assign('user', $user);

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4. layout method: used to modify the layout of the view.

   $this->layout('layout');

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   Summary

The above are several common methods in thinkphp3.2. Mastering these methods will basically master the use of this framework. Of course, the charm of thinkphp lies not only in these general methods. Developers can also extend the framework according to their own needs and implement their own business logic. I hope that the introduction in this article can help readers better use thinkphp3.2 and become more comfortable in development.

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