Passing variables from Controller to Mailables in Laravel [php]

Question

In my UserController I have a function

public function userFollow($id)
    {
        $authuser = Auth::user();
        $authuser->follow($id);
        //mail goes to the followiee ($id)
        $followiee = User::where('id', $id)->first();
        $to = $followiee->email;
        Mail::to($to)->send(new MyMail);
        return redirect()->back()->with('message', 'Following User');
    }

I have also created a Mailable MyMail

class MyMail extends Mailable
{
    use Queueable, SerializesModels;


    /**
     * Create a new message instance.
     *
     * @return void
     */
    public function __construct()
    {
        //
    }

    /**
     * Build the message.
     *
     * @return $this
     */
    public function build()
    {
        return $this->view('emails.welcome');
    }
}

Inside my welcome email I need to access some variables like $to which is defined in the UserController

I tried the following in MyMail Mailable:

 public function build()
    {
        return $this->view('emails.welcome',['to' => $to]);
    }

But I am getting Undefined variable: to

How to pass variables from Controller to Mailables?

Update:

What I have tried so far:

UserController

Mail::to($to)->send(new MyMail($to));

MyMail

    public $to;
    public function __construct($to)
    {
        $this->to = $to;
    }

    public function build()
    {
        return $this->view('emails.welcome');
    }

Welcome.blade.php

 {{ $to }}

Error:

FatalErrorException in Mailable.php line 442:
[] operator not supported for strings

Sergii K · Accepted Answer · 2017-06-28 08:39:46Z

8

One solution is to pass variables to the MyMail constructor, like this:

UserController

Mail::to($to)->send(new MyMail($to));

MyMail

public $myTo;

public function __construct($to)
{
    $this->myTo = $to;
}

public function build()
{
    return $this->view('emails.welcome');
}

Welcome.blade.php

{{ $myTo }}

Update: As @Rahul noted in his answer, the $to property can be defined as public. And in this case the view will be populated with it automatically.

Update 2: You just need to give a different name to your $to variable (e.g. $myTo) to distinguish it from the $to in the Mailable.php which is defined as public $to = [];.

edited Jun 28, 2017 at 8:39

answered Jun 28, 2017 at 7:59

Sergii K

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5 Comments

Saurabh Over a year ago

I tried this, but I am getting an error Access level to App\Mail\MyMail::$to must be public (as in class Illuminate\Mail\Mailable)

Rahul Over a year ago

In order to make public you dont need to pass it as parameter, see the method 1 of below solution

Saurabh Over a year ago

I tried @Rahul method too, but I got another error FatalErrorException in Mailable.php line 442: [] operator not supported for strings

Saurabh Over a year ago

Awesome, changing it to a different variable worked!

Chris Over a year ago

So trying to pass a custom string variable in the constructor of a mailable in Laravel 5.5 gives me a BindingResolutionException, saying "Unresolvable dependency resolving" as if it thinks the string is a dependency... Is it required to pass only dependency objects in 5.5 or am I doing something wrong?

Rahul · Accepted Answer · 2017-06-28 08:41:29Z

2

There are two ways you may make data available to your view.

First, any public property defined on your mailable class will automatically be made available to the view

class MyMail extends Mailable
{
    use Queueable, SerializesModels;

    public $to;

    /**
     * Create a new message instance.
     *
     * @return void
     */
    public function __construct($to)
    {
        $this->to = $to;
    }

    /**
     * Build the message.
     *
     * @return $this
     */
    public function build()
    {
        return $this->view('emails.welcome'); // $to will be automatically passed to your view
    }
}

Second you may manually pass your data to the view via the with method however you will still pass data via the mailable class' constructor; however, you should set this data to protected or private properties so the data is not automatically made available to the template.

class MyMail extends Mailable
{
    use Queueable, SerializesModels;

      protected $to;
    /**
     * Create a new message instance.
     *
     * @return void
     */
    public function __construct($to)
    {
        $this->to = $to;
    }

    /**
     * Build the message.
     *
     * @return $this
     */
    public function build()
    {
        return $this->view('emails.welcome',['to'=>$to]);


     }
    }

edited Jun 28, 2017 at 8:41

answered Jun 28, 2017 at 8:03

Rahul

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4 Comments

Saurabh Over a year ago

in the 1st method, you have not passed $to in the constructor. Although I tried your 1st method by passing the variable to the constructor, it didnt work for me.

Rahul Over a year ago

@thehackwall I have written $this->to = $to; in 1st method

Saurabh Over a year ago

But you need to pass the argument like this also right? public function __construct($to)

Rahul Over a year ago

ohhh yes my mistake

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