notification on new user registration - php

Question

I used two tutorials to create code which notifies me on a new user registration. mail-notifications and redirect-login-register-add-method/
This works now
I am just sending a notification to default email defined here in my User model:
This is my desired goal
I want to send newly registered user's email in the emailed notification. Also, I wish to customize recipient for this specific HelloUser notification.
public function routeNotificationForMail()
{
return 'name#gmail.com';
}
The notification is fired by the code in my RegisterController.php:
protected function redirectTo()
{
$user = Auth::user();
$user->notify(new \App\Notifications\HelloUser());
return '/'; // redirects to main page
}
The above solution works, but I after many attempts I am still unable to get these extended result:
to do 1
I will have several notifications, which I want to mail to 2-3 emails, not just one.
My attempt
In my notification file App\Notifications\\HelloUser.php I tried to add
extra line. (Note tha the line is now commented)
public function toMail($notifiable)
{
return (new MailMessage)
->line('The introduction to the notification.')
->action('Notification Action', url('/'))
->line('The new user email is ');
// ->to('name#gmail.com');
}
... but I failed. I could define global recipient as described here in the documentation
My question #1
How I can I define a separate recipient for each Notification?
TO DO 2
I also tried to get the newly registered user's email into the emailed notification.
For this purpose I tried to copy my solution from Mailables. So in RegisterControler.php I tried to pass $user variable in the function:
protected function redirectTo()
{
$user = Auth::user();
$user->notify(new \App\Notifications\HelloUser($user));
return '/';
}
and then in my Notification file App\Notifications\HelloUser I did this:
public $user;
public function __construct($user)
{
$email = $user->email;
}
in a hope that this piece would produce a notification with new user's email:
public function toMail($notifiable)
{
return (new MailMessage)
->line('The introduction to the notification.')
->action('Notification Action', url('/'))
->line('The new user email is '.$user->email);
}
The result: I just get Undefined variable: user.
TO DO
How to make this code work?
Thank you for your time.
=============
Edit:
upon #Arun_jai request I place here the dd($notifiable). It seems that it is generated properly and the object is just instance of the User model. The relevant part:
#attributes: array:6 [▼
"name" => "Peter attempt 16"
"email" => "name#gmail.com"
"password" => "$2t9WHLFY14XNf0$nj7TYDYAxiZ/kdfrUy$1vC2"
"updated_at" => "2018-01-18 07:08:12"
"created_at" => "2018-01-18 07:08:12"
"id" => 270
]

Answer 1

Regarding the Undefined variable: user error, try instantiating the $user variable in your constructor, instead of the email. Your constructor should look like this:
public function __construct($user)
{
$this->user = $user;
}
Then you will be able to get the users' email by calling it with $this->user in any place of that class, so your MailMessage creation would look like this:
return (new MailMessage)
->line('The introduction to the notification.')
->action('Notification Action', url('/'))
->line('The new user email is ' . $this->user->email);