通过MySQL表中的所有设备令牌迭代发送推送通知，如果有很多令牌，那真的很慢

Question

我使用Laravel 5.2来创建我的网络API，以便在我的iOS应用中发送推送通知。有一些场景应该将相同的推送消息发送到多个设备。现在我迭代（foreach）通过所有设备令牌并将推送消息发送到每个设备，当有许多设备时，它真的很慢。即使有超过1000个设备，我怎样才能使它更快。

到目前为止，这是我糟糕的代码......

foreach ($devices as $device)
            {
                $user = $device->user;

                //don't notify user if the users device is already in the array, if the user owns the post or if the user is the one who comment
                if (!in_array($device->device_token, $DeviceTokenArray) && $user->id != $post->user->id /*&& $user->id != $commentUser->id*/) {
                    $deviceToken = $device->device_token;
                    $message = PushNotification::Message('Ny kommentar - '. $post->title, array(
                        'badge' => 1,
                        'sound' => 'example.aiff',

                        'custom' => array('data' => array(
                            'id' => $post->id,

                        ))
                    ));
                    PushNotification::app('appNameIOS')
                        ->to($deviceToken)
                        ->send($message);
                    array_push($DeviceTokenArray, $device->device_token);

                    if(!in_array($user->id, $commentUserArray))
                    {
                        $notify = new Notification();
                        $notify->fullname = $commentUser->firstname . " " . $commentUser->lastname;
                        $notify->description = $commentUser->firstname . " " . $commentUser->lastname . " " . "har kommenteret annoncen," . " " . $post->title;
                        $notify->photourl = $commentUser->photourl;
                        $notify->post_id = $post->id;

                        $user->notifications()->save($notify);
                        array_push($commentUserArray, $user->id);

                    }



                }

            }