使用徽章向多个ios用户发送FCM推送通知

Trying to send FCM push to multiple users with badges, but as registration_ids accepts multiple ids but badges do not. So I am unable to assign different badges to different registrations_ids

Had a look on the link

exec('curl -X POST --header "Authorization: key=AAAA****" --Header "Content-Type: application/json" https://fcm.googleapis.com/fcm/send -d "{\"registration_ids\":['.$ios_registration_ids.'],\"notification\":{\"title\":\"'.$_POST['title'].'\",\"badge\":\"1\",\"body\":\"'.$_POST['body'].'\"},\"priority\":10}"',$result);