'/sauna/filter/0/7/6/0/0/'
'0/7/6/0/0/'
array ( 0 => '0', 1 => '7', 2 => '6', 3 => '0', 4 => '0', )
array ( 0 => 7, 1 => 6, )
array ( 'city_id' => 1, 'district' => 6, )