AWS S3授权机制 - 签名4

Question

I'm currently struggling with getting a S3 download link working. I've been using this code as reference but when I try to open the file, I get the error:

The authorization mechanism you have provided is not supported. Please use AWS4-HMAC-SHA256.

I tried a few other scripts floating around, but all ended with some other error message. Is there an easy way to migrate the script I'm using to make it work with Signature v4?

UPDATE: as suggested by hjpotter92, I used the AWS-SDK and came up with this working code:

$client = S3Client::factory([
  'version' => 'latest',
  'region'  => 'eu-central-1',
  'signature'    => 'v4',
  'credentials' => [
    'key'    => '12345',
    'secret' => 'ABCDE'
  ]
]);

$cmd = $client->getCommand('GetObject', [
  'Bucket' => '###name###',
  'Key'    => $fileName
]);

$request = $client->createPresignedRequest($cmd, '+2 minutes');
$presignedUrl = (string) $request->getUri();
return $presignedUrl;