我正在尝试使用 Ratchet 库来使用位于http://socketo.me/的 WebSocket，但是在 Ubuntu 中从命令行运行服务器脚本时遇到了一些问题。
成功安装 composer 和 Ratchet 后，我将按照http://socketo.me/docs/hello-world上的基本聊天应用程序教程进行操作，并且正在运行它步骤。我的文件结构，websockets 是我的项目文件夹，是：
kingsconflict
websockets
chat.php
chat-server.php
composer.json
vendor
autoload.php
(dependecies included by composer for Ratchet)
输入“sudo php chat-server.php”时出现的错误是“PHP 致命错误：require(): Failed opening required '/var/www/kingsconflict/vendor/autoload.php' (include_path='.:/usr /share/php:/usr/share/pear') 在 /var/www/kingsconflict/websockets/chat-server.php 第 5 行"。似乎它正在尝试打开/var/www/kingsconflict/vendor/autoload.php，但实际路径是/var/www/kingsconflict/websockets/vendor/autoload.php，我不确定它为什么这样做。
聊天服务器.php
<?php
use Ratchet\Server\IoServer;
use MyApp\Chat;
require dirname(__DIR__) . '/vendor/autoload.php'; // Error here
$server = IoServer::factory(
new Chat()
, 8080
);
$server->run();
我尝试用下面的行替换错误的行，我停止收到错误，但我收到一个新错误“PHP 致命错误：找不到类 'MyApp\Chat'”，这让我相信这个修复是不正确的。
require ('./vendor/autoload.php');
其他文件的代码与 Ratchet 教程中所示的相同，但以防万一我将它们发布在下面
聊天.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) {
// Store the new connection to send messages to later
$this->clients->attach($conn);
echo "New connection! ({$conn->resourceId})\n";
}
public function onMessage(ConnectionInterface $from, $msg) {
$numRecv = count($this->clients) - 1;
echo sprintf('Connection %d sending message "%s" to %d other connection%s' . "\n"
, $from->resourceId, $msg, $numRecv, $numRecv == 1 ? '' : 's');
foreach ($this->clients as $client) {
if ($from !== $client) {
// The sender is not the receiver, send to each client connected
$client->send($msg);
}
}
}
public function onClose(ConnectionInterface $conn) {
// The connection is closed, remove it, as we can no longer send it messages
$this->clients->detach($conn);
echo "Connection {$conn->resourceId} has disconnected\n";
}
public function onError(ConnectionInterface $conn, \Exception $e) {
echo "An error has occurred: {$e->getMessage()}\n";
$conn->close();
}
}
作曲家.json
{
"autoload": {
"psr-0": {
"MyApp": "src"
}
},
"require": {
"cboden/Ratchet": "0.2.*"
}
}
autoload.php（没有编辑这个但到底是什么）
<?php
// autoload.php generated by Composer
require_once __DIR__ . '/composer' . '/autoload_real.php';
return ComposerAutoloaderInit0964ef3a5e66723368300f04c3206ca1::getLoader();