PAYPAL php SDK1.0.1，如何设置NO_SHIPPING

require 'paypal/autoload.php';

$apiContext = new \PayPal\Rest\ApiContext(
    new \PayPal\Auth\OAuthTokenCredential(
        'YOUR_CLIENT_ID',     // 客户端ID
        'YOUR_CLIENT_SECRET'  // 客户端密钥
    )
);

$payment = new \PayPal\Api\Payment();

$amount = new \PayPal\Api\Amount();
$amount->setTotal('10.00');
$amount->setCurrency('USD');

$transaction = new \PayPal\Api\Transaction();
$transaction->setAmount($amount);

$payment->setTransactions([$transaction]);

$redirectUrls = new \PayPal\Api\RedirectUrls();
$redirectUrls->setReturnUrl('http://example.com/success')
    ->setCancelUrl('http://example.com/cancel');

$payment->setRedirectUrls($redirectUrls);

$payment->setExperienceProfileId('YOUR_EXPERIENCE_PROFILE_ID');

$inputFields = new \PayPal\Api\InputFields();
$inputFields->setNoShipping(1);  // 设置NO_SHIPPING

$webProfile = new \PayPal\Api\WebProfile();
$webProfile->setName('Test Profile')
    ->setInputFields($inputFields)
    ->setTemporary(false);

$webProfile->create($apiContext);

$payment->setExperienceProfileId($webProfile->getId());

$request = clone $payment;

try {
    $payment->create($apiContext);
    $approvalUrl = $payment->getApprovalLink();
    
    echo "用户需要前往以下链接进行支付：\n$approvalUrl";
} catch (Exception $ex) {
    echo $ex->getMessage();
}