NULL
array(8) {
  ["all_products"]=>
  int(0)
  ["filter_category_id"]=>
  int(245)
  ["filter_filter"]=>
  string(0) ""
  ["filter_attributes"]=>
  array(0) {
  }
  ["sort"]=>
  string(15) "p.date_modified"
  ["order"]=>
  string(4) "DESC"
  ["start"]=>
  int(420)
  ["limit"]=>
  int(30)
}