PHP 如何从其他脚本访问 $Instance 变量？棘轮

问题描述

我有一个带有静态实例属性的 PHP 脚本（一个 Ratchet WebSocket 控制器），我想从另一个脚本访问该脚本实例，我该怎么做？（以下代码生成该类的新 $Instance 而不是原来的）

（我想实现这一点，以便我可以从 WebSocket 控制器访问客户端列表）

（我正在学习本教程：http://socketo.me/docs/hello-world）

index.PHP

<!DOCTYPE html>
<html lang="en">
<head>
    <Meta charset="UTF-8">
    <Meta http-equiv="X-UA-Compatible" content="IE=edge">
    <Meta name="viewport" content="width=device-width,initial-scale=1.0">
    <title>Document</title>
</head>
<body>
<h1>test</h1>
<?PHP
    require dirname(__DIR__) . '/vendor/autoload.PHP';
    require '/var/www/html/test/src/Chat.PHP';
    error_reporting(E_ERROR | E_WARNING | E_PARSE);
    
  $obj = MyApp\Chat::getInstance(); 
  var_dump($obj);
  foreach ($obj->clients as $client) {
    var_dump($client);
} 
?>
</body>
</html>

/src/Chat.PHP

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

class Chat implements MessageComponentInterface {
    public static $instance = null;
    
    public $clients;

    public function __construct() {
        $this->clients = new \SplObjectStorage;
    }

    public static function getInstance()
    {
      if (self::$instance == null)
      {
        self::$instance = new Chat();
      }
   
      return self::$instance;
    }

    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();
    }
}
?>

/bin/chat-server.PHP

<?PHP
use Ratchet\Server\IoServer;
use Ratchet\Http\HttpServer;
use Ratchet\WebSocket\WsServer;
use MyApp\Chat;

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

    $server = IoServer::factory(
        new HttpServer(
            new WsServer(
                new Chat()
            )
        ),8080
    );

    $server->run();
?>

composer.json

{
    "autoload": {
        "psr-4": {
            "MyApp\\": "src"
        }
    },"require": {
        "cboden/ratchet": "^0.4.3"
    }
}

解决方法

暂无找到可以解决该程序问题的有效方法，小编努力寻找整理中！

如果你已经找到好的解决方法，欢迎将解决方案带上本链接一起发送给小编。

小编邮箱:dio#foxmail.com (将#修改为@）

ratchet

PHP 如何从其他脚本访问 $Instance 变量？ 棘轮

问题描述

解决方法

相关问答

PHP 如何从其他脚本访问 $Instance 变量？棘轮