How to use Workerman to implement the real-time audio transmission function of PHP and Unity3D

How to use Workerman to implement the real-time audio transmission function of PHP and Unity3D

Introduction:
With the continuous development of network technology and the increase in application scenarios, real-time audio transmission has become an important function of many applications one. This article will introduce how to use Workerman to achieve real-time audio transmission between PHP and Unity3D.

1. What is Workerman
Workerman is a high-performance asynchronous non-blocking network framework based on PHP. It has a flexible message distribution mechanism, high concurrency capabilities and perfect support for the Websocket protocol. , very suitable for real-time communication scenarios.

2. Real-time audio transmission implementation principle
The implementation principle of real-time audio transmission is mainly to establish WebSocket communication between the client and the server, and use WebSocket to transmit audio data in real time. In this example, PHP serves as the server, responsible for receiving and processing audio data, and Unity3D serves as the client, responsible for collecting and sending audio data.

3. Install Workerman

1. Download Workerman: wget http://www.workerman.net/download/Workerman-for-win.zip
2. Unzip: unzip Workerman-for-win.zip
3. Enter the decompression directory: cd Workerman-for-win
4. Run the server ：php start.php start

4. PHP server implementation
The following is a simple PHP code example for receiving and processing audio data sent by Unity3D .

<?php

require_once __DIR__ . '/Workerman/Autoloader.php';

use WorkermanWorker;

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

$worker->onMessage = function($connection, $data) {
    // 处理接收到的音频数据，例如存储或转发
    echo "$data
";
};

Worker::runAll();

5. Unity3D client implementation
The following is a simple C# code example for collecting audio data and sending it to the PHP server.

using UnityEngine;
using System.Collections;
using WebSocketSharp;

public class AudioStreamer : MonoBehaviour
{
    private WebSocket ws;

    IEnumerator Start()
    {
        ws = new WebSocket("ws://localhost:8000");

        StartCoroutine(Connect());

        yield return new WaitForSeconds(3);

        StartCoroutine(SendAudioData());

        yield return null;
    }

    IEnumerator Connect()
    {
        ws.OnOpen += (sender, e) => {
            Debug.Log("Connected to server");
        };

        ws.OnMessage += (sender, e) => {
            Debug.Log("Received message: " + e.Data);
        };

        ws.Connect();

        yield return null;
    }

    IEnumerator SendAudioData()
    {
        while (true)
        {
            float[] audioData = new float[512];
            // 采集音频数据，这里省略具体实现

            ws.Send(audioData.ToString());

            yield return null;
        }
    }
}

6. Running and testing

1. Start the PHP server: run the commandphp your_php_script.php
2. Run the C# script in Unity3D , connect to the PHP server and send audio data
3. Check whether the PHP server can receive the audio data normally and process it accordingly
4. According to actual needs, the received audio data can be processed Storage, forwarding, processing, playback and other operations.

7. Summary
This article introduces how to use the Workerman framework to implement real-time audio transmission between PHP and Unity3D. By establishing WebSocket communication and taking advantage of Workerman's high concurrency and asynchronous non-blocking features, we can easily realize the transmission of audio data. I hope this article is helpful to you and inspires you to create and explore real-time audio transmission capabilities.

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