recent view notice

@@ -403,7 +403,9 @@ class SearchModel
             $product['product_name'] = $productVal['product_name'];
             unset($product['default_goods']);
             unset($product['default_image']);
-            $result[$skn[$productVal['product_skn']]] = $product;
+            if (isset($skn[$productVal['product_skn']])) {
+                $result[$skn[$productVal['product_skn']]] = $product;
+            }
         }
         ksort($result);
         return $result;