The key technology and architecture design of using workererman to implement online chat
1. Introduction
Online chat is one of the very common functions in modern social networks. In order to achieve high concurrency and low latency chat services, engineers need to choose a high-performance framework. Workerman is a fully asynchronous, non-blocking, high-performance framework based on PHP, which is very suitable for implementing online chat. This article will introduce the key technologies and architectural design of using Workerman to implement online chat, and give code examples.
2. Key Technology
3. Architecture design
Workerman’s architecture design is mainly divided into two parts: server side and client side.
The server code example is as follows:
require_once __DIR__ . '/vendor/autoload.php'; use WorkermanWorker; use WorkermanLibTimer; $ws_worker = new Worker('websocket://0.0.0.0:8000'); $ws_worker->onConnect = function($connection) { echo "Connection established "; }; $ws_worker->onMessage = function($connection, $data) use ($ws_worker) { echo "Received Message: $data "; $connections = $ws_worker->connections; foreach ($connections as $client_connection) { $client_connection->send($data); } }; Worker::runAll();
The above code creates a workerman server instance, listening on port 8000. When the client connection is established, the onConnect callback function will be triggered; when When receiving a message sent by the client, the onMessage callback function will be triggered; in the onMessage callback function, the server will traverse all connected clients and push the message to all clients.
The client code example is as follows:
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Chat</title> </head> <body> <input type="text" id="message" placeholder="Type your message..."><br> <button onclick="sendMessage()">Send</button><br> <div id="chatBox"></div> <script> var socket = new WebSocket('ws://localhost:8000'); socket.onopen = function(event) { console.log("Connection established"); }; socket.onmessage = function(event) { console.log("Received Message: " + event.data); var messageBox = document.getElementById('chatBox'); messageBox.innerHTML += event.data + '<br>'; }; function sendMessage() { var messageInput = document.getElementById('message'); var message = messageInput.value; socket.send(message); messageInput.value = ''; } </script> </body> </html>
The above code uses WebSocket to establish a connection with the server, and defines the onopen and onmessage callback functions to handle the events of connection establishment and message reception respectively. The function of sending messages is implemented through input and button, and the function of displaying chat records is implemented through div.
4. Conclusion
Using workererman to implement online chat function is an efficient and scalable solution. This article introduces the key technologies and architectural design of using Workerman to implement online chat, and gives server-side and client-side code examples. I hope readers can learn about the method of using Workerman to implement online chat, improve development efficiency and build high-performance chat applications through this article.
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