'/sauna/filter/0/0/6/0/3/'
'0/0/6/0/3/'
array ( 0 => '0', 1 => '0', 2 => '6', 3 => '0', 4 => '3', )
array ( 0 => 6, 1 => 3, )
array ( 'city_id' => 1, 'district' => 3, )