How to implement real-time message push and chat record storage through Workerman

How to implement real-time message push and chat record storage through Workerman

With the rapid development of the Internet, real-time message push and chat functions have become basic requirements for many applications Function. Workerman, as a high-performance PHP Socket service framework, provides us with a simple and effective method to implement real-time message push and chat record storage. This article will introduce how to implement these functions through workererman.

First of all, we need to make it clear that our goal is to implement a real-time message push system and a chat record storage system. The goal of the real-time message push system is to push the message to a specific user in real time after the user sends the message; while the goal of the chat record storage system is to persistently store the user's chat records for future reference.

Next, we need to set up a worker environment. First, we need to install workererman's dependencies, which can be done through composer. Execute the following command in the command line:

composer require workerman/workerman

After the installation is complete, we can create a workerman startup file, for example, named start.php. In this file, we need to introduce the Workerman's Autoloader and Worker classes, and then create a Worker object. The sample code is as follows:

<?php
require_once __DIR__ . '/vendor/autoload.php';
use WorkermanWorker;

$worker = new Worker();
// 设置监听的端口
$worker->listen('websocket://0.0.0.0:2346');

Worker::runAll();

In this example, we create a Worker object and set the listening port to 2346. The WebSocket protocol is used here for communication, because the WebSocket protocol can achieve two-way real-time communication. Of course, you can also choose other protocols, such as HTTP long connection or TCP Socket.

Next, we need to write specific business logic code. First, we need to handle user connections and disconnections. This can be achieved using the onConnect and onClose methods of the Worker object. The sample code is as follows:

$worker->onConnect = function($connection) {
    // 当用户连接时执行的逻辑，比如记录用户信息等
};

$worker->onClose = function($connection) {
    // 当用户断开时执行的逻辑，比如更新用户在线状态等
};

In this example, when a user is connected, the onConnect method will be called; when the user disconnects, the onClose method will be called. We can perform some logic here, such as recording user information or updating the user's online status.

Next, we need to process the push of user messages. This can be achieved using the onMessage method of the Worker object. The sample code is as follows:

$worker->onMessage = function($connection, $data) {
    // 当收到用户的消息时执行的逻辑，比如向特定用户推送消息等
};

In this example, when a message from the user is received, the onMessage method is called. We can perform some logic here, such as pushing messages to specific users.

At the same time, in order to realize the storage function of chat records, we need to use a database to store the user's chat records. You can choose MySQL or other databases. After receiving the message from the user, we store the message into the database. The sample code is as follows:

$worker->onMessage = function($connection, $data) {
    // 解析用户的消息
    $message = json_decode($data, true);
    // 将消息存储到数据库中
    // ...
    // 向特定用户推送消息
    // ...
};

In this example, we use the json_decode function to parse the user's message into an array, and then store the message into the database. The specific implementation here needs to be coded accordingly according to the database you choose.

When pushing messages to specific users, we can use workererman's Gateway implementation. Gateway can push messages to specific connections or groups. The sample code is as follows:

$worker->onMessage = function($connection, $data) {
    // 解析用户的消息
    $message = json_decode($data, true);
    // 向特定用户推送消息
    $uid = $message['uid'];
    Gateway::sendToUid($uid, $data);
};

In this example, we use the Gateway::sendToUid method to push messages to specific users. The $uid here is the user's unique identifier, which can be generated as needed when the user connects.

Finally, in order to enable the front-end to communicate with the server, we need to write some front-end code. You can use the WebSocket API to communicate with the server. The sample code is as follows:

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

socket.onopen = function() {
    // 连接成功时执行的逻辑
};

socket.onmessage = function(event) {
    var data = JSON.parse(event.data);
    // 收到消息时执行的逻辑
};

socket.onclose = function() {
    // 连接断开时执行的逻辑
};

// 发送消息
function sendMsg(message) {
    socket.send(JSON.stringify(message));
}

In this example, we use the WebSocket API to create a WebSocket object and specify the connection address and port. Then, the onopen, onmessage and onclose events can be used to handle the connection success, message reception and connection disconnection. At the same time, messages can be sent to the server through the socket.send method.

To sum up, through Workerman we can easily implement the functions of real-time message push and chat record storage. It should be noted that this is just a simple example, and the actual implementation may require more details to be considered, such as user identity authentication, group management, message push strategies, etc. But through the high-performance Socket service framework provided by Workerman, we can easily implement these functions and flexibly expand and optimize according to needs.

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