How to use Workerman to build a real-time chat application with PHP and Unity3D

How to use Workerman to build a real-time chat application with PHP and Unity3D

Introduction:
With the rapid development of the Internet, real-time communication has become an indispensable part of modern applications. In online gaming, social media, and production environments, real-time chat applications play an important role. This article will introduce how to use the Workerman framework to build a real-time chat application, including using PHP to write server-side code and implementing the client in Unity3D.

1. Preparation:

1. PHP environment: Make sure that PHP has been installed on your server and the relevant environment has been configured.
2. Unity3D: Find and download the WebSocketSharp plug-in dependency package in the Unity3D development environment.

2. Server construction:
The following is a simple PHP server code example built using the Workerman framework. The example uses the WebSocket protocol for communication.

// 引入Workerman的命名空间
use WorkermanWorker;
use WorkermanLibTimer;

// 创建一个Worker对象，端口为1234
$ws_worker = new Worker("websocket://0.0.0.0:1234");

// 设置进程数
$ws_worker->count = 4;

// 客户端连接时的处理函数
$ws_worker->onConnect = function($connection) {
    echo "New connection
";
};

// 客户端断开连接时的处理函数
$ws_worker->onClose = function($connection) {
    echo "Connection closed
";
};

// 收到客户端消息时的处理函数
$ws_worker->onMessage = function($connection, $data) use ($ws_worker) {
    // 向所有客户端广播消息
    foreach($ws_worker->connections as $client_connection) {
        $client_connection->send($data);
    }
};

// 启动Worker
Worker::runAll();

The above code creates a WebSocket server and listens to port 1234. When the client connects, the onConnect function will be called. When the client disconnects, the onClose function will be called. When a message sent by the client is received, the onMessage function will be called.

3. Client implementation:
In Unity3D, we can use the WebSocketSharp plug-in to implement the functions of the WebSocket client. The following is a simple Unity3D code example that implements a simple chat interface.

using UnityEngine;
using System.Collections;
using WebSocketSharp;

public class ChatHandler : MonoBehaviour
{
    // WebSocket客户端对象
    WebSocket ws;

    // 服务器地址
    public string serverUrl = "ws://localhost:1234/";

    // 客户端名称
    public string clientName = "UnityClient";

    // 聊天消息
    public string message = "";

    // Start方法，程序启动时会自动调用
    void Start()
    {
        // 创建WebSocket客户端对象
        ws = new WebSocket(serverUrl);

        // 当收到服务器消息时的处理函数
        ws.OnMessage += (sender, e) =>
        {
            Debug.Log("Received: " + e.Data);
        };

        // 连接服务器
        ws.Connect();

        // 发送客户端名称给服务器
        ws.Send(clientName);
    }

    // Update方法，每帧更新时会自动调用
    void Update()
    {
        // 发送消息给服务器
        if (Input.GetKeyDown(KeyCode.Return))
        {
            ws.Send(message);

            // 清空输入框
            message = "";
        }
    }

    // 程序关闭时会自动调用
    void OnApplicationQuit()
    {
        // 断开WebSocket连接
        ws.Close();
    }
}

In the above code, we first created a WebSocket client object ws, and set the connected server address and client name. In the Start method, we bind the processing function when receiving the server message, connect to the server through ws.Connect(), and send the client name to the server. In the Update method, we monitor the user's press of the Enter key in the chat input box and send the message to the server. In the OnApplicationQuit method, we disconnect the WebSocket when the program is closed.

4. Run the test:
In order to test the server and client, you need to deploy the PHP code to your server and run the client code in Unity3D. Make sure that both the server and client are running properly and can communicate with each other.

5. Summary:
This article introduces how to use the Workerman framework to build a real-time chat application with PHP and Unity3D. Through server-side PHP code and client-side Unity3D code, we can implement a simple real-time chat application. This example can be used as a starting point for you to learn and develop real-time communication applications. You can extend and optimize it according to your own needs and application scenarios. Have fun developing!

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