/**
 * Associate Dhcp Options Action Sample
 * Associates a set of DHCP options (that you've previously created) with the specified VPC.
 * Or, associates the default DHCP options with the VPC. The default set consists of the standard
 * EC2 host name, no domain name, no DNS server, no NTP server, and no NetBIOS server or node type.
 * After you associate the options with the VPC, any existing instances and all new instances
 * that you launch in that VPC use the options. For more information about the supported DHCP
 * options and using them with Amazon VPC, go to Using DHCP Options in the Amazon Virtual
 * Private Cloud Developer Guide.  
 * @param Amazon_EC2_Interface $service instance of Amazon_EC2_Interface
 * @param mixed $request Amazon_EC2_Model_AssociateDhcpOptions or array of parameters
 */
function invokeAssociateDhcpOptions(Amazon_EC2_Interface $service, $request)
{
    try {
        $response = $service->associateDhcpOptions($request);
        echo "Service Response\n";
        echo "=============================================================================\n";
        echo "        AssociateDhcpOptionsResponse\n";
        if ($response->isSetResponseMetadata()) {
            echo "            ResponseMetadata\n";
            $responseMetadata = $response->getResponseMetadata();
            if ($responseMetadata->isSetRequestId()) {
                echo "                RequestId\n";
                echo "                    " . $responseMetadata->getRequestId() . "\n";
            }
        }
    } catch (Amazon_EC2_Exception $ex) {
        echo "Caught Exception: " . $ex->getMessage() . "\n";
        echo "Response Status Code: " . $ex->getStatusCode() . "\n";
        echo "Error Code: " . $ex->getErrorCode() . "\n";
        echo "Error Type: " . $ex->getErrorType() . "\n";
        echo "Request ID: " . $ex->getRequestId() . "\n";
        echo "XML: " . $ex->getXML() . "\n";
    }
}