I'm developing a web site and would like to send a sms message to multiple phone numbers with Nexmo, using Laravel 5.4.

My application has a one-to-many relationship between a User (Notifiable) and PhoneNumber model. The latter has user_id and number fields.

I'd like to use the elegant Notifications system Laravel offers and just be able to send a message to ALL of a given user's phone numbers by doing $user->notify(new FooNotification()) .

I have tried routing the notification by adding a routeNotificationForNexmo function to my User model and returning the phone numbers as an array of strings, but as expected that returns an error ('array to string conversion').

Any ideas? Thanks in advance.