Php 如何在Laravel 5.4中使用服务器发送的事件

我正在尝试使用我的Laravel5.4应用程序做一些简单的sse。我面临的困难实际上来自服务器

这是我的一个控制器方法

信息控制器类

public function store(Request $request)
{
    $data = [
        'name' => $request->get('name'),
        'country' => $request->get('country')
    ];

    $info = new Information($data); // My model
    $info->save();

    $push = new PushManager();
    $push->readPushValue($info); // intention here is to set the data to be sent as push. This doesnt seem to run.

    return response()->json(Information::find($info->id), 00);  
}

这是我的PushManager.php类。注意：不是控制器

class PushManager
{
    public $data;

    public function readPushValue($data)
    {
        $this->data = data;
    }

    public function getPush()
    {
        return $this->data;
    }
}

// all neccessary namespaces and use statements

    class PushNotification extends Controller
    {
        private function setupHeaders()
        {
            // headers for SSE
            header('Content-Type: text/event-stream');

            header('Cache-Control: no-cache');

            header('Connection: keep-alive');

            header('Access-Control-Allow-Origin: *');
        }

        public function push()
        {
            $this->setupHeaders();

            $push = new PushManager();
            $data = $push->getPush(); // suppose to return the value setted in the Information controller

            echo "data: {$data}\n\n";
            flush();
        }
    }

最后这是我的推送通知控制器

class PushManager
{
    public $data;

    public function readPushValue($data)
    {
        $this->data = data;
    }

    public function getPush()
    {
        return $this->data;
    }
}

// all neccessary namespaces and use statements

    class PushNotification extends Controller
    {
        private function setupHeaders()
        {
            // headers for SSE
            header('Content-Type: text/event-stream');

            header('Cache-Control: no-cache');

            header('Connection: keep-alive');

            header('Access-Control-Allow-Origin: *');
        }

        public function push()
        {
            $this->setupHeaders();

            $push = new PushManager();
            $data = $push->getPush(); // suppose to return the value setted in the Information controller

            echo "data: {$data}\n\n";
            flush();
        }
    }

我有一个调用PushNotification控制器push方法的路由 现在，每当我的信息控制器（即存储方法）运行

$push->readPushValue（$data）

时，似乎都不起作用

我知道代码有问题，我希望你能理解我的意图。请帮忙