Amazon S3 PHP SDK v2 – getCommand() must be of the type array, string given – Solution!

Catchable fatal error: Argument 2 passed to Guzzle\Service\Client::getCommand() must be of the type array, string given, called in ../_s3lib2/Guzzle/Service/Client.php on line 76 and defined in ../_s3lib2/Guzzle/Service/Client.php on line 79

If you’re getting this error when working with the version 2 PHP SDK for Amazon Web Services’ S3 service, fear not. It’s probably as simple as you passing the wrong parameters into the function. In this example I was calling listObjects() using the old SDK’s parameters rather than the new SDK’s. Simply fix!

Wrong (eg. old SDK v1 way):

$response = self::$_client->listObjects( $settings['bucket'] );

Right (eg. new SDK v2 way):

$response = self::$_client->listObjects( array( 'Bucket' => $settings['bucket'], 'Prefix' => $prefix ) );

All fixed!

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