如何纠正棘轮中的 [PHP 致命错误:找不到接口 'Ratchet\MessageComponentInterface'] [英] How to rectify [PHP Fatal error: Interface 'Ratchet\MessageComponentInterface' not found ] in ratchet

问题描述

我正在尝试通过 YouTube 中的教程创建一个基本的 websocket 聊天，但是当我运行时，我在终端中遇到了这个错误

php bin/server.php

<块引用>

致命错误:在第 6 行的/var/www/html/websocket/bin/chat.php 中找不到接口Ratchet\MessageComponentInterface"

我的chat.php代码如下:

clients=new \SplObjectStorage;}公共函数 onOpen(ConnectionInterface $conn){$this->clients->attach($conn);}公共函数 onClose(ConnectionInterface $conn){$this->clients->detach($conn);}公共函数 onMessage(ConnectionInterface $conn,$msg){foreach($this->clients as $client){if($client !==$conn){$client->send($msg);}}}公共函数 onError(ConnectionInterface $conn, \Exception $e){echo "出现以下错误:".$e->getMessage();$conn->close();}}

server.php 的代码:

run();

任何帮助将不胜感激.

解决方案

在使用 Ratchet\MessageComponentInterface 之前，包含 autoload.php 文件，该文件包含自动加载的所有定义.

在定义命名空间后包含此代码片段:

需要目录名(__DIR__).'/vendor/autoload.php';

I'm trying to create a basic websocket chat from a tutorial in YouTube and I'am facing this error in the terminal when I run

php bin/server.php

Fatal error: Interface 'Ratchet\MessageComponentInterface' not found in /var/www/html/websocket/bin/chat.php on line 6

My code is as follows for chat.php:

<?php
namespace MyApp;
use Ratchet\MessageComponentInterface;
use Ratchet\ConnectionInterface;

class chat implements MessageComponentInterface
    {
        protected $clients;
        public function __construct()
            {
                $this->clients=new \SplObjectStorage;
            }

        public function onOpen(ConnectionInterface $conn)
            {
                $this->clients->attach($conn);
            }

        public function onClose(ConnectionInterface $conn)
            {
                $this->clients->detach($conn);
            }

        public function onMessage(ConnectionInterface $conn,$msg)
            {
                foreach($this->clients as $client){
                    if($client !==$conn){
                        $client->send($msg);
                    }
                }
            }

        public function onError(ConnectionInterface $conn, \Exception $e)
            {
                echo "the following error occured: ".$e->getMessage();
                 $conn->close();
            }
    }

Code for server.php:

<?php
require 'chat.php';
require __DIR__ .'/vendor/autoload.php';
use Ratchet\Server\IoServer;
use Ratchet\Http\HttpServer;
use Ratchet\WebSocket\WsServer;

$server=IoServer::factory(new HttpServer(new WsServer (new chat())) , 8080);
$server->run();

Any help would be appreciated.

解决方案

Include the autoload.php file which has all the definitions for autoloading before using the Ratchet\MessageComponentInterface.

Include this code snippet just after defining the namespace:

require dirname(__DIR__) . '/vendor/autoload.php';

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