How to insert data into database in controller?

Question

Laravel

Good afternoon, ladies and gentlemen.
There is a form implementation and I want to catch the data that is in it and throw it into the database. In order to monitor everything that happens in the admin panel.
I do not fully understand how this can be done in this situation.
My sketches:

public function postContact(Request $request) {
        $this->validate($request, [
            'email' => 'required|email',
            'subject' => 'min:3',
            'message' => 'min:10',
            'infoaboutsender' => 'min:6']);

        $data = array(
            'email' => $request->email,
            'subject' => $request->subject,
            'bodyMessage' => $request->message,
            'infoaboutsender' => $request->infoaboutsender,
            'emails' => $request->emails
        );

        Mail::send('includes.contactemail', $data, function($message) use ($data){
            $message->from($data['email']);
            foreach ($data['emails'] as $selectedOption)
            {
            $message->to($selectedOption);
                Feedback::insert('feedback')->insert([
                    'name' => $data['infoaboutsender'],
                    'email' => $data['email'],
                    'subject' => $data['subject'],
                    'message' => $data['bodyMessage'],
                    'employees' => $selectedOption,
                ]);

            }
            $message->subject($data['subject']);

        });

At the output after my implementation, I see a problem with typing ..

FatalThrowableError in Builder.php line 2087:
Type error: Argument 1 passed to Illuminate\Database\Query\Builder::insert() must be of the type array, string given, called in

Answer 1

Try like this:

\DB::table('feedback')->insert([
    [
        'name'      => $data['infoaboutsender'],
        'email'     => $data['email'],
        'subject'   => $data['subject'],
        'message'   => $data['bodyMessage'],
        'employees' => $selectedOption,
    ]
]);

Answer 2

insert('feedback')->insert

Answer 3

Documentation, read the documentation...

Feedback::create([
  // массив с данными
]);

Where did you get insert from?
PS Using the DB class and working with the database directly is bad form during Laravel development. Use Eloquent.