PHP is typically used for backend development, while Unity3D is a powerful engine for building interactive experiences and cross-platform games. Despite their differences, combining these technologies can be especially useful in real-time multiplayer games or interactive systems that require reliable communication between client and server.
Workerman is a high-performance asynchronous network communication framework written in pure PHP. It supports multiple protocols such as TCP, UDP, and WebSocket, and is designed to handle high-concurrency environments. With Workerman, developers can build robust, event-driven services that scale efficiently.
You can download Workerman from its official website or install it using Composer:
composer require workerman/workerman
On the server side, Workerman allows you to create a TCP server to communicate with a Unity3D client. Below is a simple example of an Echo server written in PHP using Workerman:
<?php
require_once 'Workerman/Autoloader.php';
use Workerman\Worker;
$worker = new Worker("tcp://0.0.0.0:1234");
$worker->onConnect = function($connection) {
echo "New connection\n";
};
$worker->onMessage = function($connection, $data) {
$connection->send($data);
};
$worker->onClose = function($connection) {
echo "Connection closed\n";
};
Worker::runAll();
?>
On the Unity3D side, you can use C# to connect to the PHP server and send a message. Here's a basic example:
using UnityEngine;
using System.Net.Sockets;
using System.Text;
public class Client : MonoBehaviour
{
private TcpClient client;
private NetworkStream stream;
void Start()
{
client = new TcpClient("localhost", 1234);
stream = client.GetStream();
SendMessage("Hello, World!");
}
void SendMessage(string message)
{
byte[] data = Encoding.ASCII.GetBytes(message);
stream.Write(data, 0, data.Length);
}
void OnDestroy()
{
stream.Close();
client.Close();
}
}
From the examples above, you can see how Unity3D connects to the PHP backend and sends a message, which the server then echoes back. This establishes a basic communication loop and serves as a foundation for more advanced features like authentication, live updates, and synchronized gameplay.
Though simple, this setup demonstrates the core principle of integrating Unity3D with a PHP backend. With Workerman, you can further extend this system to implement:
Real-time multiplayer logic
In-game chat systems
Broadcast messaging
Server-to-client push notifications
By combining PHP and Unity3D with the power of Workerman, developers can build responsive, high-performance network communication systems. This approach is ideal for real-time interactive applications and scalable backend solutions. Workerman’s event-driven architecture makes it a strong choice for modern multiplayer and cross-device communication needs.