PC修复web.search.banner问题

@@ -425,9 +425,9 @@ class SearchData
         // 构建必传参数
         $param = Yohobuy::param();
         $param['method'] = 'web.search.banner';
-        $param['position_id'] = $positionId;
-        $param['max_sort_id'] = $msort;
-        $param['middle_sort_id'] = $misort;
+        $param['position_id'] = intval($positionId);
+        $param['max_sort_id'] = intval($msort);
+        $param['middle_sort_id'] = intval($misort);
         $param['gender'] = $gender;
         $param['brand'] = '0';
         $param['style'] = '0';