public function categories()
{
return $this->belongsTo(Category::class);
}

public function items() {
 return $this->belongsTo(Item::class);
 }

public function getItems()
  {

$items = Item::with('categories')->get()->groupBy('category_id');

return view('home',compact('items'));
 }

public function getItems()
 {
 $items = Item::all()->groupBy('category_id');
return view('home',compact('items'));
 }
 @foreach($items as $category_id => $categoryItems)
  {{ $category_id }}
  @foreach($categoryItems as $item)
    <!-- Item Details-->
   @endforeach
  @endforeach