b2b运费通过update_order_review运送方式到woocommerce结账

当用户更改邮政编码时，我有一个问题需要更新woocommerce结帐时的送货方式 . 我使用woocommerce_checkout_update_order_review（standart woocommerce ajax action）来获取邮政编码，并将其和产品从购物车发送到货运 . 此API可以返回大量的送货方式：http://b2b.freightquote.com/documents/Freightquote_API_Programmers_Reference.pdf（3分）

add_action( 'woocommerce_checkout_update_order_review', 'freightquote_get_methods' );
function freightquote_get_methods( $data ){
$Zip = /*billing_postcode from $data*/
$xml = /*some xml for api with $Zip, products etc.*/

$ch = curl_init('https://b2b.freightquote.com/WebService/QuoteService.asmx?WSDL');
    curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: text/xml'));
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $xml);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    $output = curl_exec($ch); //xml with methods if success
    curl_close($ch);
}

方法列表有超过24个选项（列表可以在结帐表单中更改邮政编码后每次更改）

在将$ output XML解析为数组之后，方法如下所示：

Array
(
    [0] => Array
        (
            [CarrierOptionId] => 1
            [CarrierName] => Frontline Freight (Consolidated Services)
            [SCAC] => FCSY
            [DOTNumber] => 2215162
            [QuoteAmount] => 332.95
            [Currency] => USD
            [IsGuaranteed] => false
            [IsTMS] => false
            [IsInterline] => false
            [Transit] => 7
            [TariffMultiplier] => 1
            [Mode] => Inter Direct
            [ProviderList] => Array
                (
                )

            [CarrierAccessorials] => Array
                (
                    [Accessorial] => Array
                        (
                            [0] => Array
                                (
                                    [AccessorialId] => 158
                                    [AccessorialDescription] => Fuel surcharge
                                    [AccessorialCharge] => 69.41
                                )

                            [1] => Array
                                (
                                    [AccessorialId] => 423
                                    [AccessorialDescription] => ARBITRARY ORIGIN CHARGE
                                    [AccessorialCharge] => 20
                                )

                        )

                )

        )
)

如何在更改zip后动态添加这些方法？我无法创建所有类，每次都可以更改方法列表 . 现在我有24种方法用于我当前的查询 .