app\helpers\productsHelper::categoriesDropDownFormat PHP Метод

    public static function categoriesDropDownFormat($array, &$outPut)
    {
        foreach ($array as $row) {
            /**
             * $level
             * Contains the category tree.
             *
             * @var [type]
             */
            $level = categoriesHelper::level($array, $row['category_id']);
            $s = '';
            for ($i = 0; $i < $level; $i++) {
                $s .= '&nbsp;&nbsp;&nbsp;';
            }
            $icon = 2;
            if ($level % 3 == 0) {
                $icon = 0;
            } elseif ($level % 2 == 0) {
                $icon = 1;
            }
            $indentation = ['&#9679;', '&#8226;', '&ordm;'][$icon];
            $outPut[$row['id']] = $s . $indentation . '&nbsp;' . $row['name'];
        }
    }

 /**
  * Show the form for editing the specified resource.
  *
  * @param int $id
  *
  * @return Response
  */
 public function edit($id)
 {
     $product = Product::find($id);
     if (\Auth::id() != $product->user_id) {
         return redirect('products/' . $product->user_id)->withErrors(['not_access' => [trans('globals.not_access')]]);
     }
     $typeItem = $product->type;
     $disabled = '';
     $order = OrderDetail::where('product_id', $id)->join('orders', 'order_details.order_id', '=', 'orders.id')->first();
     if ($order) {
         $disabled = 'disabled';
     }
     $features = ProductDetail::all()->toArray();
     $allCategoriesStore = Category::actives()->lightSelection()->get()->toArray();
     $categories = ['' => trans('product.controller.select_category')];
     //categories drop down formatted
     productsHelper::categoriesDropDownFormat($allCategoriesStore, $categories);
     $condition = ['new' => trans('product.controller.new'), 'refurbished' => trans('product.controller.refurbished'), 'used' => trans('product.controller.used')];
     $edit = true;
     $panel = $this->panel;
     $oldFeatures = ProductDetail::oldFeatures($product->features);
     $productsDetails = new featuresHelper();
     return view('products.form', compact('product', 'panel', 'features', 'categories', 'condition', 'typeItem', 'disabled', 'edit', 'oldFeatures', 'productsDetails'));
 }