Получить данные из массива PHP без узла No

Добрый день, как мне получить данные из этого массива?

Array
(
   [input] => Array
    (
        [account] => XXXXX
        [mass] => 0.6
        [quantity] => 5
        [length] => 15
        [width] => 15
        [height] => 15
        [to_town] => Somerset West
        [from_town] => Honeydew
        [delivery_type] => D/D
        [cod] => 
        [response_type] => 
        [town_strict] => 
    )

[to_town_valid] => Y
[from_town_valid] => Y
[result] => Success
[amount] => Array
    (
        [rate] => UQ
        [chargeable_mass] => 3.38
        [excl_vat] => 250.43
        [incl_vat] => 287.99
        [cod_charge] => 0
        [fuel_surcharge] => 54.17
        [volumetric] => 5000.00
        [delivery_surcharge] => 0.00
        [packaging_surcharge] => 0.00
        [vat] => 46.00
        [total] => 350.29
    )

)

1

Мой код выглядит следующим образом, но не работает :(

$myurl = "http://timefreight.co.za/collection/api/rates_api_block.php?account = {$key}&mass = {$mas}&quantity = {$qa}&length = {$len}&width = {$wid}&height = {$hei}&to_town = {$to}&from_town = {$fro}&delivery_type=D/D";

$results = file_get_contents($myurl);

return $results['amount']['total'];

I tried $result = json_decode($results, true); but it returns nothing :(

Любая помощь будет оценена по достоинству!