How to display array data after store & email sent? - laravel-5

Question

UPDATE
I have contact form. it works good. I would like to display $data array at
final page which is admintemp.blade.php.
I can display $data array at one step before final page. but I would like to display those at last page too.
I thoguht just add this
return view('mail.complete', ['data' => $data]);
is fine. but I got this error
Invalid argument supplied for foreach()
Could you teach me right way please?
Here is my code
/*
*confirm page
*/
public function confirm(Request $request)
{
$rules = [
'orderer' => 'required'
];
$this->validate($request, $rules);
$data = $request->all();
$request->session()->put('data',$data);
return view('mail.confirm', compact("data"));
}
/*
*　complete page
*/
public function complete(Request $request)
{
$data = $request->session()->pull('data');
$token = array_shift($data);
$Contact = Contact::create($data);
$data = session()->regenerateToken();
return view('mail.complete', ['data' => $data]);
}
UPDATES 2
complete.blade.php
#foreach ($data as $val)
{{ $val->id }}
{{ $val->tel }}
#endforeach

Answer 1

for example you have two step form
first step post method:
public function postCreateStep1(Request $request)
{
$validatedData = $request->validate([
'name' => 'required',
]);
if (empty($request->session()->get('contact'))) {
$contact = new Contact();
$contact->fill($validatedData);
$request->session()->put('contact', $contact);
} else {
$contact = $request->session()->get('contact');
$contact->fill($validatedData);
$request->session()->put('contact', $contact);
}
return redirect('/create-step2');
}
second step post method:
public function postCreateStep2(Request $request)
{
$validatedData = $request->validate([
'family' => 'required',
]);
if (empty($request->session()->get('contact'))) {
$contact = new Contact();
$contact->fill($validatedData);
$request->session()->put('contact', $contact);
} else {
$contact = $request->session()->get('contact');
$contact->fill($validatedData);
$request->session()->put('contact', $contact);
}
$created_contact = Contact::create([
'name' => $contact->name,
'family' => $contact->family,
]);
// Do whatever you want with $created_contact
return redirect('/');
}