目前在練習laravel廣播，照著網路教學做使用redis
使用下面這個寫法能夠把值寫進redis當中

// .env
BROADCAST_DRIVER=redis
CACHE_DRIVER=file
QUEUE_CONNECTION=sync
SESSION_DRIVER=file
SESSION_LIFETIME=120
//

Redis::set('key',date('Y-m-d h:i:s'));

但是使用event就無法寫入
BROADCAST_DRIVER=log，可以正常寫入log檔案
換成redis就沒辦法也沒有報出錯誤，想請問如何解決

//event
class BroadEvents extends Event implements ShouldBroadcast
{
    use Dispatchable, InteractsWithSockets, SerializesModels;
    public $message;
    /**
     * Create a new event instance.
     *
     * @return void
     */
    public function __construct($new_message)
    {
        //
        $this->message=$new_message;
    }

    /**
     * Get the channels the event should broadcast on.
     *
     * @return \Illuminate\Broadcasting\Channel|array
     */
    public function broadcastOn()
    {
        // return new PrivateChannel('channel-name');
        return new Channel('Achannel');
        // return ['Achannel'];
    }
}

//route
Route::get('/broad', function () {
    $new_message['time']=date('Y-m-d h:i:s');
    $new_message['msg']='test msg';
    broadcast(new BroadEvents($new_message));
    return 'ok';
});