Backend Development
PHP Tutorial
Use php to develop Websocket to implement instant chat function
Use php to develop Websocket to implement instant chat function
Use PHP to develop Websocket to implement instant chat function
Websocket is a full-duplex communication protocol, suitable for real-time communication scenarios, such as instant chat and real-time data updates wait. As a popular server-side programming language, PHP can also implement Websocket functions through related libraries and extensions. In this article, we will introduce how to use PHP to develop Websocket. The specific code examples are as follows.
First of all, you need to ensure that the server supports the Websocket protocol. In PHP, you can use the Ratchet library to implement a Websocket server. Ratchet is a library based on ReactPHP that provides a simple and flexible operation interface.
- Install the Ratchet library
Use Composer to install the Ratchet library. You can execute the following command in the project directory:
composer require cboden/ratchet
- Create Websocket Server
Create a file named server.php in the root directory of the project and write the following code:
<?php
require __DIR__.'/vendor/autoload.php';
use RatchetMessageComponentInterface;
use RatchetConnectionInterface;
use RatchetServerIoServer;
use RatchetHttpHttpServer;
use RatchetWebSocketWsServer;
class Chat implements MessageComponentInterface {
protected $clients;
public function __construct() {
$this->clients = new SplObjectStorage;
}
public function onOpen(ConnectionInterface $conn) {
$this->clients->attach($conn);
echo "New connection! ({$conn->resourceId})
";
}
public function onMessage(ConnectionInterface $from, $msg) {
foreach ($this->clients as $client) {
if ($client !== $from) {
$client->send($msg);
}
}
}
public function onClose(ConnectionInterface $conn) {
$this->clients->detach($conn);
echo "Connection {$conn->resourceId} has disconnected
";
}
public function onError(ConnectionInterface $conn, Exception $e) {
echo "An error occurred: {$e->getMessage()}
";
$conn->close();
}
}
$server = IoServer::factory(
new HttpServer(
new WsServer(
new Chat()
)
),
8080
);
echo "Server running at http://localhost:8080
";
$server->run();- Start the Websocket server
Enter the project root directory on the command line and execute the following command to start the Websocket server:
php -f server.php
At this point, the Websocket server has been started and is listening on port 8080. It can be accessed through http://localhost:8080.
- Writing the front-end page
Create a file named index.html in the project directory and write the following code:
<!DOCTYPE html>
<html>
<head>
<title>Websocket Chat</title>
<script>
var socket = new WebSocket("ws://localhost:8080");
socket.onopen = function(event) {
console.log("Socket opened");
};
socket.onmessage = function(event) {
console.log("Message received: " + event.data);
};
socket.onclose = function(event) {
console.log("Socket closed");
};
function sendMessage() {
var message = document.getElementById("message").value;
socket.send(message);
}
</script>
</head>
<body>
<input type="text" id="message" placeholder="Type a message">
<button onclick="sendMessage()">Send</button>
</body>
</html>In the browser Open the index.html file in and you will see an input box and button for sending messages. Enter a message in the input box and click the Send button to send the message to the server.
- Test program
Open multiple browser windows or tabs, enter different messages respectively, and click the send button. You will find that the message will be broadcast to all connected clients.
So far, we have successfully developed a simple Websocket server using PHP to implement the instant chat function. Through the encapsulation of the Ratchet library, we can quickly implement complex Websocket applications. I hope this article is helpful to you, and I wish you happy programming!
The above is the detailed content of Use php to develop Websocket to implement instant chat 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
1393
52
1209
24
How to use Memcache in PHP development?
Nov 07, 2023 pm 12:49 PM
In web development, we often need to use caching technology to improve website performance and response speed. Memcache is a popular caching technology that can cache any data type and supports high concurrency and high availability. This article will introduce how to use Memcache in PHP development and provide specific code examples. 1. Install Memcache To use Memcache, we first need to install the Memcache extension on the server. In CentOS operating system, you can use the following command
Teach you step by step to develop your own forum website using PHP
Oct 28, 2023 am 08:23 AM
With the rapid development of the Internet and people's increasing demand for information exchange, forum websites have become a common online social platform. Developing a forum website of your own can not only meet your own personalized needs, but also provide a platform for communication and sharing, benefiting more people. This article will teach you step by step how to use PHP to develop your own forum website. I hope it will be helpful to beginners. First, we need to clarify some basic concepts and preparations. PHP (HypertextPreproces
How to develop a hotel booking website using PHP
Oct 28, 2023 am 08:19 AM
How to use PHP to develop a hotel booking website With the development of the Internet, more and more people are beginning to arrange their travels through online booking. As one of the common online booking services, hotel booking websites provide users with a convenient and fast way to book hotels. This article will introduce how to use PHP to develop a hotel reservation website, allowing you to quickly build and operate your own online hotel reservation platform. 1. System requirements analysis Before starting development, we need to conduct system requirements analysis first to clarify what the website we want to develop needs to have.
Describe the SOLID principles and how they apply to PHP development.
Apr 03, 2025 am 12:04 AM
The application of SOLID principle in PHP development includes: 1. Single responsibility principle (SRP): Each class is responsible for only one function. 2. Open and close principle (OCP): Changes are achieved through extension rather than modification. 3. Lisch's Substitution Principle (LSP): Subclasses can replace base classes without affecting program accuracy. 4. Interface isolation principle (ISP): Use fine-grained interfaces to avoid dependencies and unused methods. 5. Dependency inversion principle (DIP): High and low-level modules rely on abstraction and are implemented through dependency injection.
How to use PHP to develop an online tutoring service platform
Oct 28, 2023 am 09:01 AM
How to use PHP to develop an online tutoring service platform. With the rapid development of the Internet, online tutoring service platforms have attracted more and more people's attention and demand. Parents and students can easily find suitable tutors through such a platform, and tutors can also better demonstrate their teaching abilities and advantages. This article will introduce how to use PHP to develop an online tutoring service platform. First, we need to clarify the functional requirements of the platform. An online tutoring service platform needs to have the following basic functions: Registration and login system: users can
How to implement version control and code collaboration in PHP development?
Nov 02, 2023 pm 01:35 PM
How to implement version control and code collaboration in PHP development? With the rapid development of the Internet and the software industry, version control and code collaboration in software development have become increasingly important. Whether you are an independent developer or a team developing, you need an effective version control system to manage code changes and collaborate. In PHP development, there are several commonly used version control systems to choose from, such as Git and SVN. This article will introduce how to use these tools for version control and code collaboration in PHP development. The first step is to choose the one that suits you
How to use PHP to develop the coupon function of the ordering system?
Nov 01, 2023 pm 04:41 PM
How to use PHP to develop the coupon function of the ordering system? With the rapid development of modern society, people's life pace is getting faster and faster, and more and more people choose to eat out. The emergence of the ordering system has greatly improved the efficiency and convenience of customers' ordering. As a marketing tool to attract customers, the coupon function is also widely used in various ordering systems. So how to use PHP to develop the coupon function of the ordering system? 1. Database design First, we need to design a database to store coupon-related data. It is recommended to create two tables: one
How to use PHP to develop the member points function of the grocery shopping system?
Nov 01, 2023 am 10:30 AM
How to use PHP to develop the member points function of the grocery shopping system? With the rise of e-commerce, more and more people choose to purchase daily necessities online, including grocery shopping. The grocery shopping system has become the first choice for many people, and one of its important features is the membership points system. The membership points system can attract users and increase their loyalty, while also providing users with an additional shopping experience. In this article, we will discuss how to use PHP to develop the membership points function of the grocery shopping system. First, we need to create a membership table to store users
