Workerman network programming practice: building a reliable real-time data synchronization system-Workerman-php.cn

Workerman network programming practice: building a reliable real-time data synchronization system

王林

Release： 2023-08-05 08:52:46

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Workerman Network Programming Practice: Building a Reliable Instant Data Synchronization System

With the popularity of the Internet and mobile devices, instant communication has become more and more important. Realizing instant messaging and data synchronization between different devices and platforms has become a common need among developers. In this article, we will explore how to build a reliable real-time data synchronization system using the Workerman network programming framework.

Introduction to Workerman
Workerman is a high-performance event-driven programming framework based on PHP, which can quickly develop network applications. It uses non-blocking I/O and multi-process architecture, and supports TCP, UDP, WebSocket and other protocols. Workerman's high performance and scalability make it ideal for building real-time communication applications.
Installation and Configuration
First, we need to install Workerman. Workerman can be installed through composer through the command line:

composer require workerman/workerman

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After the installation is completed, we can initialize Workerman through the following code:

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

use WorkermanWorker;

$worker = new Worker();
$worker->listen('tcp://0.0.0.0:2345');

$worker->onMessage = function ($connection, $data) {
    // 这里处理收到的消息
};

Worker::runAll();

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The above code creates a Worker object and listens at 2345 TCP connection on the port. Messages from the client are processed through the onMessage callback function. We can implement our own business logic in the callback function.

Data synchronization system design
In order to build a reliable real-time data synchronization system, we need the following components:

Database: used to store data.
Cache system: used to cache data and improve reading and writing speed.
Communication server: Responsible for real-time data synchronization between the client and the server.
Client library: Provides developers with a convenient interface for data synchronization on the client side.

Code Example
Below we take a simple chat application as an example to demonstrate how to use Workerman to build an instant data synchronization system.

Server code:

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

use WorkermanWorker;

$worker = new Worker();
$worker->listen('websocket://0.0.0.0:8000');

$worker->onMessage = function ($connection, $data) {
    // 处理收到的消息
    $data = json_decode($data, true);

    // 存储消息到数据库
    saveMessageToDatabase($data);

    // 缓存消息
    cacheMessage($data);

    // 向所有客户端广播消息
    broadcastMessage($data);
};

$worker->onClose = function ($connection) {
    // 处理客户端断开连接
    removeClient($connection);
};

function saveMessageToDatabase($data)
{
    // 将消息存储到数据库中
}

function cacheMessage($data)
{
    // 缓存消息
}

function broadcastMessage($data)
{
    // 向所有客户端广播消息
}

function removeClient($connection)
{
    // 处理客户端断开连接
}

Worker::runAll();

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Client code:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Chat</title>
</head>
<body>
    <input type="text" id="message" placeholder="输入消息">
    <button onclick="sendMessage()">发送</button>

    <script src="http://localhost:8000/socket.io/socket.io.js"></script>
    <script>
        var socket = io('http://localhost:8000');
        
        socket.on('connect', function() {
            console.log('Connected to server');
        });
        
        socket.on('message', function(data) {
            console.log('Received message:', data);
        });
        
        function sendMessage() {
            var message = document.getElementById('message').value;
            socket.emit('message', message);
        }
    </script>
</body>
</html>

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The above code communicates through the Websocket protocol. The server uses the WebSocket class provided by Workerman to create a Websocket server, and the client uses the socket.io library to communicate with the server.

Summary
Through the introduction of this article, we have learned how to use the Workerman network programming framework to build a reliable real-time data synchronization system. Using Workerman, we can easily create high-performance web applications. I hope this article will be helpful to you and stimulate your interest in network programming.

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