<div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
 {!! $moduleCategories = DB::table('module_categories')->select('categories_name')->where('modules_id','=',$modules->id)->get() !!}
 @foreach($moduleCategories as $category)
     <a class="dropdown-item" href="#">{{ $category->categories_name }}</a>
 @endforeach
 </div>