Detailed explanation of Workerman development: realizing high-concurrency network communication function

Workerman Development Detailed Explanation: Realizing High Concurrency Network Communication Function

Introduction:
With the rapid development of the Internet, network communication has become an indispensable part of modern society. Highly concurrent network communication capabilities become particularly important when developing and designing applications. As an open source PHP Socket framework, Workerman has powerful high-concurrency network communication capabilities, allowing developers to easily implement stable and efficient network communication functions. This article will introduce the use of Workerman in detail, combined with code examples, to help readers better understand and apply Workerman.

1. Introduction to Workerman
Workerman is a fully asynchronous, high-performance network communication framework developed based on PHP. It receives client connections by listening to sockets, and provides various event callback functions to process data sent by the client. Workerman adopts a non-blocking IO model and supports concurrent processing of multiple client requests. Its design goal is to provide a reliable, efficient, and simple network programming interface to help developers quickly build highly concurrent network applications.

2. Installation and use of Workerman

1. Download Workerman

Can be downloaded from the official website (http://www.workerman.net/) The latest version of Workerman, Workerman can also be installed through composer.

2. Create Workerman instance

Before using Workerman, you need to create a Workerman instance object as the entrance to the entire application. The following is a sample code for creating a Workerman instance:

use WorkermanWorker;

// 创建一个Workerman实例
$worker = new Worker('tcp://0.0.0.0:8080');

// 设置启动的进程数
$worker->count = 4;

// 设置回调函数
$worker->onWorkerStart = function() {
    echo "Worker start...
";
};

// 启动Workerman实例
Worker::runAll();

In the above code, a Workerman instance is created and listens on the local port 8080. Through the onWorkerStart callback function, you can perform some initialization operations when the Worker starts.

3. Processing client connection requests

When a client connects to Workerman, the onConnect callback function will be triggered. The following is a sample code for handling client connections:

use WorkermanWorker;

$worker = new Worker('tcp://0.0.0.0:8080');
$worker->count = 4;

$worker->onWorkerStart = function() {
    echo "Worker start...
";
};

// 处理客户端连接请求
$worker->onConnect = function($connection) {
    echo "New connection...
";
};

Worker::runAll();

In the onConnect callback function, you can write logic code to handle client connection requests.

4. Processing data sent by the client

When the client sends data to Workerman, the onMessage callback function will be triggered. The following is a sample code for processing data sent by the client:

use WorkermanWorker;

$worker = new Worker('tcp://0.0.0.0:8080');
$worker->count = 4;

$worker->onWorkerStart = function() {
    echo "Worker start...
";
};

$worker->onConnect = function($connection) {
    echo "New connection...
";
};

// 处理客户端发送的数据
$worker->onMessage = function($connection, $data) {
    echo "Receive data: $data
";
};

Worker::runAll();

In the onMessage callback function, you can write logic code for processing data sent by the client.

5. Send data to the client

In addition to processing data sent by the client, Workerman also supports sending data to the client. This can be achieved through the send() method. The following is a sample code for sending data to the client:

use WorkermanWorker;

$worker = new Worker('tcp://0.0.0.0:8080');
$worker->count = 4;

$worker->onWorkerStart = function() {
    echo "Worker start...
";
};

$worker->onConnect = function($connection) {
    echo "New connection...
";
};

$worker->onMessage = function($connection, $data) {
    echo "Receive data: $data
";
    // 发送数据给客户端
    $connection->send("Hello, client!
");
};

Worker::runAll();

In the onMessage callback function, send it to the client through the $connection->send() method data.

3. Summary
This article introduces the installation and use of Workerman, and demonstrates the basic steps of using Workerman with code examples. As a high-concurrency network communication framework, Workerman can help developers implement reliable and efficient network communication functions. We hope that through the introduction of this article, readers can better understand and apply Workerman and improve the development efficiency and performance of network applications.

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