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

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

Introduction:
Now, with the rapid development of the Internet and the popularity of smart devices, real-time data synchronization systems have become an indispensable part of various industries. . The real-time data synchronization system can quickly synchronize data from one source to multiple targets, ensuring data accuracy and timeliness. This article will introduce how to use the PHP extension library Workerman to build an efficient real-time data synchronization system. Compared with traditional network programming models, Workerman is widely favored by developers for its high performance and ease of use.

1. Introduction to Workerman
Workerman is a multi-process network programming framework developed based on PHP. It uses an event-driven model to handle high-concurrency network communications, and supports multiple protocols such as TCP, UDP, and WebSocket. As a fully asynchronous network framework, Workerman is able to handle multiple connections simultaneously in each process to achieve efficient real-time data transmission.

2. Principle of real-time data synchronization
The core principle of the real-time data synchronization system is the publish/subscribe model. The data source acts as a publisher and publishes data to the message queue or message middleware. Subscribers receive data from the message queue or message middleware by subscribing to the corresponding topic, and process it accordingly. In this way, a reliable, real-time data channel is established between the data source and subscribers.

3. Build a real-time data synchronization system

1. Install Workerman

   composer require workerman/workerman

2. Create a data source server

   <?php
   use WorkermanWorker;
   
   // 创建一个Worker监听端口2345，使用TCP协议
   $worker = new Worker('tcp://0.0.0.0:2345');
   
   // 启动4个进程对外提供服务
   $worker->count = 4;
   
   // 当客户端有新的连接时
   $worker->onConnect = function($connection) {
    // 向新连接的客户端发送一条欢迎消息
    $connection->send('Welcome to Data Source Server');
   };
   
   // 当客户端发送消息过来时
   $worker->onMessage = function($connection, $data) {
    // 发布消息到"topic1"这个主题
    $topic1 = new Topic('topic1');
    $topic1->publish($data);
   };
   
   // 运行Worker
   Worker::runAll();

3. Create subscriber client

   <?php
   use WorkermanWorker;
   use WorkermanLibTimer;
   
   // 创建一个Worker监听端口5678，使用TCP协议
   $worker = new Worker("tcp://0.0.0.0:5678");
   
   // 启动1个进程对外提供服务
   $worker->count = 1;
   
   // 当客户端有新的连接时
   $worker->onConnect = function($connection) {
    // 向新连接的客户端发送一条欢迎消息
    $connection->send('Welcome to Subscriber Server');
   };
   
   // 当客户端发送消息过来时
   $worker->onMessage = function($connection, $data) {
    // 订阅"topic1"这个主题，并设置收到消息的回调
    $topic1 = new Topic('topic1');
    $topic1->subscribe($connection, function($data) use ($connection) {
        // 将消息发送给订阅者
        $connection->send('Received: '.$data);
    });
   };
   
   // 运行Worker
   Worker::runAll();

4. Create Topic class

   <?php
   use WorkermanChannelClient;
   
   class Topic
   {
    private $channel;
   
    public function __construct($topic)
    {
        $this->channel = new Client();
        // 建立连接
        $this->channel->connect('127.0.0.1', 2206);
    }
   
    public function publish($data)
    {
        // 发布消息
        $this->channel->publish($data);
    }
   
    public function subscribe($connection, $callback)
    {
        // 订阅主题
        $this->channel->subscribe($connection->id, function($data) use ($connection, $callback) {
            $callback($data);
        });
    }
   }

4. Run and test

1. Start the data source server

   php data_source.php start

2. Start the subscriber client

   php subscriber.php start

3. Connect to the data source server

   telnet localhost 2345

4. Publish a message to topic "topic1"

   publish your_data

5. View the messages received by the subscriber client

Conclusion:
This article details how to use the Workerman framework to build an efficient real-time data synchronization system. Through the publish/subscribe model, we can easily achieve synchronous transmission of real-time data. Workerman is loved by developers for its high performance and ease of use. It can play a role in various application scenarios and realize more high-concurrency network communication requirements. In future development, we can expand the data synchronization system according to actual needs to make the system more stable and reliable.

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