How to get Unique value in blade file laravel

I want to fetch unique value for filters of all products.

My db structure as follows

id   Product category_id format   attribute
1     demo1      5         HD      test1
2     demmo2     4         SD      test3
3     demmo3     4         HD      test2
4     demmo4     3         HD      test3

I want add filters of format and attribute in product page. But in that HD comming 3 times. I want to display that one only.

I am not getting how to display only single time.

Below is my controller code:

$item = Item::where('active_status', 1)->where('status', "1");
$data['item_count'] = $item;
$data['item'] = $item->paginate(20);
return view('frontend.pages.explore', compact('data'));

Below is blade file

<div class="filter-btn">
  @foreach($data['item'] as $resolution)
      <a class="btn btn-white-outline display-4" href="">{{array_unique($resolution->format)}}</a>
  @endforeach
</div>

I am not getting how to display unique value only. Anyone have idea then let me know

Solution

since you are paginating your data, your "first page" might not have all the formats, so you have to do another query to your database:

$formats = DB::table('items')->select('format')->distinct()->get()
...
view(..., compact('data', 'formats'))

in the blade table:

@foreach($formats as $resolution)
  <a class="btn btn-white-outline display-4" href="">{{$resolution->format}}</a>
@endforeach