dynamodb getitem using php - I only want to retrieve the value

Question

I'm able to query my dynamodb tables, but I only want to retrieve the actual value. I don't want the formatting output. This same question has been answered here for Java, but I'm looking for the PHP solution: Retrieving just the item value from a dynamodb table?

Here is my getitem query:

$response = $dynamodb->getItem(array(
    "TableName" => $tableName,
    "ConsistentRead" => true,
    "Key" => array(
        "userguid" => array(Type::STRING => $userguid)
    ),
    "AttributesToGet" => array("token")
));
print_r($response["Item"]["token"]);

Here is the output:

Array
(
    [S] => 9d194513
)

All I want to get back is:

9d194513

I assumed the logical answer would be to change the last line to:

print_r($response["Item"]["token"]["S"]);

But then my code doesn't return anything at all. Obviously still learning PHP here, and any help would be appreciated.

Answer 1

Don't use print_r function, just either echo your variables

echo $response["Item"]["token"]["S"];

or store in a variable for later use

$res_token = $response["Item"]["token"]["S"];

Answer 2

You can also use the getPath convenience method built into the Model object that the SDK returns for operations.

echo $response->getPath('Item/token/S');

For more information about working with responses in the SDK, see the Response Models page in the AWS SDK for PHP User Guide.