Why is laravel not returning view?

Question

Laravel

Good afternoon.
There is a form that sends us to the controller, in the controller the function is divided into two parts
a) if the button "a"
is pressed b) if the button "b" is pressed

public function fun(Request $request)
{
if($request->input('a') { 
............
...........
$array = [1,2,3]
return view('view', [ 'arr' => $array]);
}
elseif($request->input('b') {
.......
}
}

everything works, but as soon as I move function A into a separate one, I would change the code to:

if($request->input('a') { 
  $this->a();
}

the array comes in correctly, but the view is not returned. those. I get just an empty window, without any errors and so on. Who can know what is the reason? I suspect that in the request. but in this function the request is not used.

Answer 1

if($request->input('a') { 
  return $this->a();
}