'/sauna/filter/0/2/8/0/0/'
'0/2/8/0/0/'
array ( 0 => '0', 1 => '2', 2 => '8', 3 => '0', 4 => '0', )
array ( 0 => 2, 1 => 8, )
array ( 'city_id' => 1, 'district' => 8, )