PHP uses swoole to update client data in real time
This article mainly introduces the relevant information about PHP using swoole to update client data in real time. Friends in need can refer to it. I hope to be helpful.
If you want to update a list in real time, the traditional approach is to use polling. Taking the web as an example, the server is regularly requested through Ajax and then the data is obtained and displayed on the page. This method is simple to implement, but the disadvantage is that it wastes resources.
HTTP1.1 has newly added support for websocket, so that passive display can be transformed into active notification. That is, a persistent connection is maintained with the server through websocket. Once the data changes, the server notifies the client that the data has been updated, and then refreshes and other operations. This eliminates many unnecessary passive requests and saves server resources.
To implement a webscoket program, you first need to use a browser that supports html5
if(ws === null){
var wsServer = 'ws://'+ location.hostname +':8888';
ws = new WebSocket(wsServer);
ws.onopen = function(){
console.log("socket连接已打开");
};
ws.onmessage = function(e){
console.log("message:" + e.data);
};
ws.onclose = function(){
console.log("socket连接已断开");
};
ws.onerror = function(e){
console.log("ERROR:" + e.data);
};
//离开页面时关闭连接
$(window).bind('beforeunload',function(){
ws.close();
}
);
}This way A client has been implemented, but the matter is far from over. The above code simply performs basic actions such as connection, dialogue, and shutdown. If you want to communicate with the server, you must have a more specific solution. For example, when receiving a message, determine the type and perform further operations.
Server: Swoole is used here for websocket development on the PHP server. It is very simple to use Swoole for PHP websocket development, and it also supports httpserver.
$server = new swoole_websocket_server("0.0.0.0", 8888);
$server->on('open', function (swoole_websocket_server $server, $request) {
echo "server: handshake success with fd{$request->fd}\n";
});
$server->on('message', function (swoole_websocket_server $server, $frame) {
echo "receive from {$frame->fd}:{$frame->data},opcode:{$frame->opcode},fin:{$frame->finish}\n";
$server->push($frame->fd, "this is server");
});
$server->on('close', function ($ser, $fd) {
echo "client {$fd} closed\n";
});
$server->start();swoole is a php extension. You can refer to the installation method here: How to install swoole extension in php
Related recommendations:
thinkphp5 and swoole use SMTP to implement asynchronous mass mailing examples
Swoole development key points introduction
php asynchronous multi-threaded swoole usage example
The above is the detailed content of PHP uses swoole to update client data in real time. 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
PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian
Dec 24, 2024 pm 04:42 PM
PHP 8.4 brings several new features, security improvements, and performance improvements with healthy amounts of feature deprecations and removals. This guide explains how to install PHP 8.4 or upgrade to PHP 8.4 on Ubuntu, Debian, or their derivati
7 PHP Functions I Regret I Didn't Know Before
Nov 13, 2024 am 09:42 AM
If you are an experienced PHP developer, you might have the feeling that you’ve been there and done that already.You have developed a significant number of applications, debugged millions of lines of code, and tweaked a bunch of scripts to achieve op
How To Set Up Visual Studio Code (VS Code) for PHP Development
Dec 20, 2024 am 11:31 AM
Visual Studio Code, also known as VS Code, is a free source code editor — or integrated development environment (IDE) — available for all major operating systems. With a large collection of extensions for many programming languages, VS Code can be c
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
How do you parse and process HTML/XML in PHP?
Feb 07, 2025 am 11:57 AM
This tutorial demonstrates how to efficiently process XML documents using PHP. XML (eXtensible Markup Language) is a versatile text-based markup language designed for both human readability and machine parsing. It's commonly used for data storage an
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.
Why does an error occur when installing an extension using PECL in a Docker environment? How to solve it?
Apr 01, 2025 pm 03:06 PM
Causes and solutions for errors when using PECL to install extensions in Docker environment When using Docker environment, we often encounter some headaches...
