Using ThinkPHP6 to implement message push

With the continuous development and popularization of Internet technology, message push function has gradually become an important part of modern network applications. Whether it is an online social networking site, e-commerce platform or mobile application, the message push function can help users obtain the latest developments in a timely manner and provide a more convenient and efficient service experience. In this article, we will introduce how to use the ThinkPHP6 framework to implement the message push function.

ThinkPHP6 is an excellent PHP development framework, which is easy to learn, efficient and stable, and is widely used in the development of various web applications. ThinkPHP6 provides a unified API that makes it easier for developers to write and maintain code. Next, we will introduce the specific steps on how to use the ThinkPHP6 framework to implement the message push function.

1. Preparation

Before you start writing code, you need to prepare some necessary tools and environment. First, you must install the PHP environment and MySQL database, and create the database and data table. Then you need to install composer, enter the directory where the application is located in the console, and execute the following command to install ThinkPHP6:

composer create-project topthink/think my-project

After the installation is completed, enter the project root directory and start the development server, enter http:// in the browser localhost:8000/ to access the homepage.

2. Write code

1. Create a message push controller

Create a new controller in the app/controller directory under the project root directory File Push.php. In this file, define a method named push to push messages to the front end. The code is as follows:

<?php
namespace appcontroller;

use thinkworkerServer;

class Push extends Server
{
    protected $socket = 'websocket://0.0.0.0:2346';

    public function onWorkerStart()
    {
        echo "WorkerStart
";
    }

    public function onMessage($connection, $data)
    {
        $connection->send('hello,thinkphp6');
    }

    public function onClose($connection)
    {
        echo "onClose
";
    }
}

2. Configuring the WebSocket service

In ThinkPHP6, you can implement the WebSocket service by inheriting the thinkworkerServer class. You need to add extends Server in the controller's class definition.

In this class, you need to add a protected attribute $socket and three methods: onWorkerStart method, onMessage method and onClose method. The $socket attribute is used to specify the address of the WebSocket. The onWorkerStart method will be automatically called when the service starts, and the onMessage method and onClose method are used to process the data sent by the connection and the closing event respectively. In the code here, the onMessage method directly sends a fixed message back to the connection after receiving the message.

3. Receive push request

After uploading the information required for message push, you need to send a push request to the server through JavaScript code. The code is as follows:

var socket = new WebSocket('ws://localhost:2346');

socket.onopen = function (event) {
    console.log('WebSocket connected.');
    socket.send('Hello Socket!');
};

socket.onmessage = function (event) {
    console.log('Received message from server:', event.data);
};

socket.onclose = function (event) {
    console.log('WebSocket disconnected.');
};

Here, a WebSocket object is created to establish a WebScoket connection with the server. WebSocket opening, message, closing and other events can be monitored through onopen, onmessage, onclose and other event handlers.

4. Implementing the message push function

After receiving the request from WebSocket, the pushed message needs to be sent to the specified user. The specific logic of message push needs to be implemented in the push method. The code is as follows:

public function push()
{
    $server =     hinkacadeEnv::get('websocket.server');// 获取Server实例
    // 接收客户端传输的数据
    $data    = $server->frame->data;
    $ssid = $server->connections;// 返回全部连接
    foreach ($ssid as $v){
        // 给指定用户发消息
        $server->push($v, $data);
    }
}

Here, use the Env class that comes with ThinkPHP6 to obtain the WebSocket service instance, and traverse all connections through a foreach loop to send each Connect to send push messages. The specific logic of push can be written according to actual needs. For example, messages can be pushed based on user ID.

3. Test code

After finishing writing the code, you need to start the WebSocket service to test whether the code is running normally. Run the following command in the console:

php think worker:server

This command will start the WebSocket service and listen to port number 2346. At this point, you can access http://localhost:8000/push through the browser to test the message push function.

Summary

This article introduces how to use the ThinkPHP6 framework to implement the message push function, which mainly includes the following steps:

1. Preparation: Install PHP environment, MySQL database, Composer and other tools, create databases and data tables, and install the ThinkPHP6 framework.

2. Write code: Create a Push controller, configure the WebSocket service, and send a push request to the server through JavaScript to implement the message push function.

3. Test code: Start the WebSocket service and test through the browser.

Through the introduction of this article, I believe readers can already understand how to use the ThinkPHP6 framework to implement message push functions, and can quickly get started implementing their own push functions.

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