search
HomeBackend DevelopmentPHP TutorialHow to develop a chat room using swoole and websocket

这次给大家带来如何用swoole与websocket开发一个聊天室,用swoole与websocket开发聊天室的注意事项有哪些,下面就是实战案例,一起来看一下。

首先,我想说下写代码的一些习惯,第一,任何可配置的参数或变量都要写到一个config文件中。第二,代码中一定要有日志记录和完善的报错并记录报错。言归正传,swoole应该是每个phper必须要了解的,它号称重新定义了php。此聊天室利用了swoole高并发并且异步非阻塞的特点提高了程序的性能。

首先,定义一个 swoole_lock swoole_websocket_server ,并且配置参数,具体参数详情可以去swoole官网查看。

public function start()
{
   $this->lock = new swoole_lock(SWOOLE_MUTEX);            
   // 对文件或数组进行锁操作,已达到同步
   $this->server = new swoole_websocket_server($this->addr, $this->port);  
   // swoole提供的Websocket Server
   $this->server->set(array(
      'daemonize' => 0,
      'worker_num' => 4,
      'task_worker_num' => 10,
      'max_request' => 1000,
      'log_file' => ROOT_PATH . 'storage\\logs\\swoole.log'   
    // swoole日志路径,必须是绝对路径
   ));
   $this->server->on('open', array($this, 'onOpen'));
   $this->server->on('message', array($this, 'onMessage'));
   $this->server->on('task', array($this, 'onTask'));
   $this->server->on('finish', array($this, 'onFinish'));
   $this->server->on('close', array($this, 'onClose'));
   // 启动服务
   $this->server->start();
}

当有客户端链接时,简单记录客户端的信息。

public function onOpen($server, $request)
    {
      $message = array(
        'remote_addr' => $request->server['remote_addr'],
        'request_time' => date('Y-m-d H:i:s', $request->server['request_time'])
      );
      write_log($message);
    }

当有客户端发送信息时,对信息进行处理。

public function onMessage($server, $frame)
    {
      $data = json_decode($frame->data);
      switch ($data->type) {
        case 'init':
        case 'INIT':
          $this->users[$frame->fd] = $data->message;  、
      // 记录每个链接的信息,同样不要尝试打印出来看,因为你只能看到自己的链接信息
          $message = '欢迎' . $data->message . '加入了聊天室';
          $response = array(
            'type' => 1,  // 1代表系统消息,2代表用户聊天
            'message' => $message
          );
          break;
        case 'chat':
        case 'CHAT':
          $message = $data->message;
          $response = array(
            'type' => 2,  // 1代表系统消息,2代表用户聊天
            'username' => $this->users[$frame->fd],
            'message' => $message
          );
          break;
        default:
          return false;
      }
        
       // 将信息交给task处理
      $this->server->task($response);
    }
    public function onTask($server, $task_id, $from_id, $message)
    {
       // 迭代所有的客户端链接,将消息推送过去。(如果你尝试将 $this->server->connections 打印出来,那么你会发现他是空的。但当时用 foreach 去循环时,它确实有用。)
      foreach ($this->server->connections as $fd) {
        $this->server->push($fd, json_encode($message));
      }
      $server->finish( 'Task' . $task_id . 'Finished' . PHP_EOL);
    }

最后,当客户端断开链接时,利用锁机制,同步删除客户端信息,并记录日志。

public function onClose($server, $fd)
    {
      $username = $this->users[$fd];
      // 释放客户端,利用锁进行同步
      $this->lock->lock();
      unset($this->users[$fd]);
      $this->lock->unlock();
      if( $username ) {
        $response = array(
          'type' => 1,  // 1代表系统消息,2代表用户聊天
          'message' => $username . '离开了聊天室'
        );
        $this->server->task($response);
      }
      write_log( $fd . ' disconnected');
    }

服务端完了,下面就是客户端,很简单,只需要用websocket链接就ok!

// websocket
    let address = 'ws://<?php  echo CLIENT_CONNECT_ADDR . &#39;:&#39; . CLIENT_CONNECT_PORT ?>';
    let webSocket = new WebSocket(address);
    webSocket.onerror = function (event) {
      alert('服务器连接错误,请稍后重试');
    };
    webSocket.onopen = function (event) {
      if(!sessionStorage.getItem('username')) {
        setName();
      }else {
        username = sessionStorage.getItem('username')
        webSocket.send(JSON.stringify({
          'message': username,
          'type': 'init'
        }));
      }
    };
    webSocket.onmessage = function (event) {
      console.log(event);
      let data = JSON.parse(event.data);
      if (data.type == 1) {
        $('#chat-list2').append('
  • 系统消息:' + data.message + '
  • ');       } else if (data.type == 2) {         $('#chat-list2').append('
  • ' + data.username + ':' + data.message + '
  • ');       }     };     webSocket.onclose = function (event) {       alert('散了吧,服务器都关了');     };

    相信看了本文案例你已经掌握了方法,更多精彩请关注php中文网其它相关文章!

    推荐阅读:

    在PHP中怎样实现微信退款功能

    PHP有哪些生成随机数的方法

    The above is the detailed content of How to develop a chat room using swoole and websocket. For more information, please follow other related articles on the PHP Chinese website!

    Statement
    The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
    What is the full form of PHP?What is the full form of PHP?Apr 28, 2025 pm 04:58 PM

    The article discusses PHP, detailing its full form, main uses in web development, comparison with Python and Java, and its ease of learning for beginners.

    Is PHP a case-sensitive language?Is PHP a case-sensitive language?Apr 28, 2025 pm 04:55 PM

    PHP's case sensitivity varies: functions are insensitive, while variables and classes are sensitive. Best practices include consistent naming and using case-insensitive functions for comparisons.

    How do you redirect a page in PHP?How do you redirect a page in PHP?Apr 28, 2025 pm 04:54 PM

    The article discusses various methods for page redirection in PHP, focusing on the header() function and addressing common issues like "headers already sent" errors.

    What is PDO in PHP?What is PDO in PHP?Apr 28, 2025 pm 04:51 PM

    The article discusses PHP Data Objects (PDO), an extension for database access in PHP. It highlights PDO's role in enhancing security through prepared statements and its benefits over MySQLi, including database abstraction and better error handling.

    What is Memcache and Memcached in PHP? Is it possible to share a single instance of a Memcache between several projects of PHP?What is Memcache and Memcached in PHP? Is it possible to share a single instance of a Memcache between several projects of PHP?Apr 28, 2025 pm 04:47 PM

    Memcache and Memcached are PHP caching systems that speed up web apps by reducing database load. A single instance can be shared among projects with careful key management.

    What are the steps to create a new database using MySQL and PHP?What are the steps to create a new database using MySQL and PHP?Apr 28, 2025 pm 04:44 PM

    Article discusses steps to create and manage MySQL databases using PHP, focusing on connection, creation, common errors, and security measures.

    Does JavaScript interact with PHP?Does JavaScript interact with PHP?Apr 28, 2025 pm 04:43 PM

    The article discusses how JavaScript and PHP interact indirectly through HTTP requests due to their different environments. It covers methods for sending data from JavaScript to PHP and highlights security considerations like data validation and prot

    How to execute a PHP script from the command line?How to execute a PHP script from the command line?Apr 28, 2025 pm 04:41 PM

    The article discusses executing PHP scripts from the command line, including steps, common options, troubleshooting errors, and security considerations.

    See all articles

    Hot AI Tools

    Undresser.AI Undress

    Undresser.AI Undress

    AI-powered app for creating realistic nude photos

    AI Clothes Remover

    AI Clothes Remover

    Online AI tool for removing clothes from photos.

    Undress AI Tool

    Undress AI Tool

    Undress images for free

    Clothoff.io

    Clothoff.io

    AI clothes remover

    Video Face Swap

    Video Face Swap

    Swap faces in any video effortlessly with our completely free AI face swap tool!

    Hot Tools

    Dreamweaver CS6

    Dreamweaver CS6

    Visual web development tools

    SublimeText3 Linux new version

    SublimeText3 Linux new version

    SublimeText3 Linux latest version

    DVWA

    DVWA

    Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

    MantisBT

    MantisBT

    Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

    Atom editor mac version download

    Atom editor mac version download

    The most popular open source editor