Backend Development
PHP Tutorial
PHP Websocket development guide to implement real-time task distribution function
PHP Websocket development guide to implement real-time task distribution function
PHP Websocket Development Guide, to implement real-time task distribution function, requires specific code examples
Introduction:
In modern Web applications, real-time task distribution function has become becomes more and more important. Through real-time task distribution, real-time communication and real-time updates can be achieved, providing users with a better interactive experience. PHP Websocket is a technology used to achieve real-time communication. This article will introduce the basic principles and usage of PHP Websocket, and provide specific code examples to help readers understand and implement real-time task distribution functions.
Section 1: What is Websocket
Websocket is a full-duplex communication protocol. It is established on a TCP connection and realizes real-time two-way communication between the server and the client through the handshake process. Compared with the traditional HTTP protocol, Websocket has lower network latency and higher real-time performance.
Section 2: Principle of PHP Websocket
The working principle of PHP Websocket can be briefly described as the following steps:
- Server startup: Start a server through the PHP command line mode Websocket server.
- Handshake process: When the client sends an HTTP request to the server, the server will verify the request and establish a handshake connection.
- Connection establishment: After connecting through handshake, a persistent connection is established between the server and the client, allowing two-way communication.
- Data transmission: Data can be transmitted between the server and the client through the Websocket protocol and respond immediately.
Section 3: How to use PHP Websocket
PHP Websocket can be implemented through PHP libraries such as Ratchet or Swoole. The following uses Ratchet as an example.
Step 1: Install the Ratchet library
First, you need to use the Composer command to install the Ratchet library. Execute the following command in the command line:
composer require cboden/ratchet
Step 2: Create Websocket Server
Create a server.php file in the project folder and write the following code in the file:
use RatchetMessageComponentInterface;
use RatchetConnectionInterface;
require 'vendor/autoload.php';
class MyWebSocket implements MessageComponentInterface {
protected $clients;
public function __construct() {
$this->clients = new SplObjectStorage;
}
public function onOpen(ConnectionInterface $conn) {
$this->clients->attach($conn);
echo "New client connected: {$conn->resourceId}
";
}
public function onMessage(ConnectionInterface $from, $msg) {
// Task distribution logic
foreach ($this->clients as $client) {
$client->send($msg);
}
}
public function onClose(ConnectionInterface $conn) {
$this->clients->detach($conn);
echo "Client disconnected: {$conn->resourceId}
";
}
public function onError(ConnectionInterface $conn, Exception $e) {
echo "An error occured: {$e->getMessage()}
";
$conn->close();
}
}
$app = new RatchetApp('localhost', 8080);
$app->route('/', new MyWebSocket, ['*']);
$app->run();Step 3: Run the Websocket server
Execute the following command in the command line to start the Websocket server:
php server.php
Step 4: Create the Websocket client
In the project folder Create a client.html file and write the following code in the file:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Websocket Client</title>
</head>
<body>
<script type="text/javascript">
const socket = new WebSocket('ws://localhost:8080');
socket.onopen = function() {
console.log('Connected to server');
};
socket.onmessage = function(e) {
console.log('Received message:', e.data);
};
socket.onclose = function() {
console.log('Connection closed');
};
</script>
</body>
</html> Step 5: Test Websocket Communication
Open client.html## in a browser #, and open the developer tools, you can see the log of successful connection in the console. At this point, a Websocket connection is established between the server and the client, allowing real-time communication.
Through PHP Websocket, we can easily implement the real-time task distribution function. In the code of step 2, you can see that the
onMessage method defines the logic of task distribution. When the server receives the task data sent by the client, it traverses all connected clients and sends the task data to each client using the send method.
public function onMessage(ConnectionInterface $from, $msg) {
// Task distribution logic
foreach ($this->clients as $client) {
$client->send($msg);
}
}Through the above steps, we have learned the basic principles and usage of PHP Websocket, and introduced how to implement real-time task distribution function. By using PHP Websocket, we can easily achieve real-time communication and real-time updates, improving user interaction experience. I hope this article will help you understand and use PHP Websocket.
- Ratchet official website: https://github.com/ratchetphp/Ratchet
- Swoole official website: https://www.swoole.com /
The above is the detailed content of PHP Websocket development guide to implement real-time task distribution function. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1664
14
1423
52
1317
25
1268
29
1246
24
Explain JSON Web Tokens (JWT) and their use case in PHP APIs.
Apr 05, 2025 am 12:04 AM
JWT is an open standard based on JSON, used to securely transmit information between parties, mainly for identity authentication and information exchange. 1. JWT consists of three parts: Header, Payload and Signature. 2. The working principle of JWT includes three steps: generating JWT, verifying JWT and parsing Payload. 3. When using JWT for authentication in PHP, JWT can be generated and verified, and user role and permission information can be included in advanced usage. 4. Common errors include signature verification failure, token expiration, and payload oversized. Debugging skills include using debugging tools and logging. 5. Performance optimization and best practices include using appropriate signature algorithms, setting validity periods reasonably,
PHP Program to Count Vowels in a String
Feb 07, 2025 pm 12:12 PM
A string is a sequence of characters, including letters, numbers, and symbols. This tutorial will learn how to calculate the number of vowels in a given string in PHP using different methods. The vowels in English are a, e, i, o, u, and they can be uppercase or lowercase. What is a vowel? Vowels are alphabetic characters that represent a specific pronunciation. There are five vowels in English, including uppercase and lowercase: a, e, i, o, u Example 1 Input: String = "Tutorialspoint" Output: 6 explain The vowels in the string "Tutorialspoint" are u, o, i, a, o, i. There are 6 yuan in total
Explain late static binding in PHP (static::).
Apr 03, 2025 am 12:04 AM
Static binding (static::) implements late static binding (LSB) in PHP, allowing calling classes to be referenced in static contexts rather than defining classes. 1) The parsing process is performed at runtime, 2) Look up the call class in the inheritance relationship, 3) It may bring performance overhead.
What are PHP magic methods (__construct, __destruct, __call, __get, __set, etc.) and provide use cases?
Apr 03, 2025 am 12:03 AM
What are the magic methods of PHP? PHP's magic methods include: 1.\_\_construct, used to initialize objects; 2.\_\_destruct, used to clean up resources; 3.\_\_call, handle non-existent method calls; 4.\_\_get, implement dynamic attribute access; 5.\_\_set, implement dynamic attribute settings. These methods are automatically called in certain situations, improving code flexibility and efficiency.
PHP and Python: Comparing Two Popular Programming Languages
Apr 14, 2025 am 12:13 AM
PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.
PHP in Action: Real-World Examples and Applications
Apr 14, 2025 am 12:19 AM
PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.
PHP: A Key Language for Web Development
Apr 13, 2025 am 12:08 AM
PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7
The Enduring Relevance of PHP: Is It Still Alive?
Apr 14, 2025 am 12:12 AM
PHP is still dynamic and still occupies an important position in the field of modern programming. 1) PHP's simplicity and powerful community support make it widely used in web development; 2) Its flexibility and stability make it outstanding in handling web forms, database operations and file processing; 3) PHP is constantly evolving and optimizing, suitable for beginners and experienced developers.
