S3 client initialization error via PHP SDK

Question 1

I’m trying to initialize the S3 client from the AWS PHP SDK. My code is as follows:

$credentials = new Credentials(self::KEY, self::SECRET);

$s3_client = new S3Client([
    'version'     => 'latest',
    'region'      => $region,
    'credentials' => $credentials
]);

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$credentials = new Credentials(self::KEY, self::SECRET);

$s3_client = new S3Client([

'version' => 'latest',

'region' => $region,

'credentials' => $credentials

]);

But am getting the following errors:

A PHP Error was encountered

Severity: 4096

Message: Argument 1 passed to Aws\Common\Client\AbstractClient::__construct() must implement interface Aws\Common\Credentials\CredentialsInterface, array given, called in /opt/showhouse/www/application/models/showhouse/common/services/aws/aws.php on line 47 and defined
Filename: Client/AbstractClient.php

Line Number: 73

Any ideas where I am going wrong? Am using the latest version of the SDK installed via Composer.

Question 2

I’m guessing you are using AWS PHP SDK version 2.0. If so, then the S3Client indeed implements the AbstractClient class. This means that the parameters are:
__construct( Aws\Common\Aws\Common\Credentials\CredentialsInterface $credentials, Aws\Common\Aws\Common\Signature\SignatureInterface $signature, Guzzle\Common\Collection $config )

The S3Client implementation you are attempting to use is from version 3.0 of the AWS PHP SDK.

S3 client initialization error via PHP SDK

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