'/sauna/filter/0/3/5/0/0/'
'0/3/5/0/0/'
array ( 0 => '0', 1 => '3', 2 => '5', 3 => '0', 4 => '0', )
array ( 0 => 3, 1 => 5, )
array ( 'city_id' => 1, 'district' => 5, )