example

dynamodb.php

<?php

require_once 'AWSSDKforPHP/sdk.class.php';
require_once 'AWSSDKforPHP/services/dynamodb.class.php';

$dynamodb = new AmazonDynamoDB(
    array(
        'certificate_authority' => true,
        'default_cache_config' => '/tmp',
        'key' => '',
        'secret' => ''
    )
);
$response = $dynamodb->list_tables();
print_r($response);