Real-time online chat using workerman and HTML5 WebSocket technology
Using Workerman and HTML5 WebSocket technology to achieve real-time online chat
Introduction:
With the rapid development of the Internet and the popularity of smartphones, real-time online chat has become an integral part of people's daily lives. In order to meet the needs of users, web developers are constantly looking for more efficient and real-time chat solutions. This article will introduce how to combine the PHP framework Workerman and HTML5 WebSocket technology to implement a simple real-time online chat system.
1. Introduction to Workerman:
Workerman is a PHP developer-friendly high-performance asynchronous IO framework that can implement high-performance TCP/UDP real-time communication applications. Compared with the traditional PHP development method, Workerman has higher concurrency capabilities and lower resource consumption, and is very suitable for implementing real-time online chat systems.
2. Introduction to HTML5 WebSocket:
WebSocket is a full-duplex communication protocol based on the TCP protocol, which can establish a persistent connection between the client and the server to achieve real-time data transmission. The newly added WebSocket technology in HTML5 has very important application value in real-time chat and other real-time data transmission.
3. Environment preparation:
- Server operating system: linux
- PHP version: 7.0 and above
-
Install Workerman:
$ composer require workerman/workerman
4. Server-side implementation:
-
Create chat.php file and write server-side code:
<?php require_once __DIR__.'/vendor/autoload.php'; // 加载Workerman的自动加载文件 use WorkermanWorker; // 创建一个Worker监听2346端口，使用WebSocket协议通讯 $ws_worker = new Worker("websocket://0.0.0.0:2346"); $ws_worker->count = 4; // 设置进程数 // 客户端与服务器建立连接时触发 $ws_worker->onConnect = function($connection){ echo "Connection established: " . $connection->id . " "; }; // 客户端向服务器发送消息时触发 $ws_worker->onMessage = function($connection, $data){ echo "Received message: " . $data . " "; // 向所有在线用户发送消息 foreach($connection->worker->connections as $clientConnection){ $clientConnection->send($data); } }; // 客户端断开连接时触发 $ws_worker->onClose = function($connection){ echo "Connection closed: " . $connection->id . " "; }; Worker::runAll(); -
Start the WebSocket service:
$ php chat.php start
5. Client implementation:
-
Create the chat.html file and write the client code:
<!DOCTYPE html> <html> <head> <title>实时在线聊天</title> <script> var ws = new WebSocket("ws://localhost:2346"); ws.onopen = function(event){ console.log("Connected to WebSocket server."); }; ws.onmessage = function(event){ var message = event.data; console.log("Received message: " + message); // 在页面上显示接收到的消息 var messageBox = document.getElementById("message-box"); var newMessage = document.createElement("p"); newMessage.innerText = message; messageBox.appendChild(newMessage); }; function sendMessage(){ var message = document.getElementById("message-input").value; ws.send(message); document.getElementById("message-input").value = ""; } </script> </head> <body> <div id="message-box"></div> <input id="message-input" type="text" placeholder="输入消息"> <button onclick="sendMessage()">发送</button> </body> </html> - Use a browser to open the chat.html file to start real-time online chat.
6. Summary:
This article introduces how to use Workerman and HTML5 WebSocket technology to achieve real-time online chat. By using the high-performance Workerman framework and the two-way communication capabilities of WebSocket, we can easily implement a simple online chat system. In addition to the chat system, we can also use WebSocket technology to implement more real-time communication applications, such as real-time games, real-time stock quotes, etc. I hope this article will be helpful for developing real-time online chat systems and inspire more ideas and applications.
Reference:
- Workerman official document: https://www.workerman.net/doc
- HTML5 WebSocket tutorial: https://www.runoob .com/html/html5-websocket.html
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