php - 关于停止和退款订阅的 PayPal NVP API 的推荐做法是什么？

Question

因此，我开设了这个小类(class)来处理 PayPal 无效、退款和订阅取消。我的问题是，推荐的做法是什么？我的意思是，我是否应该尝试使交易无效，然后忽略错误，然后退款，然后取消订阅？

请注意，在我的案例中，交易是从点击 PayPal 订阅按钮开始的，然后在 6 个月期限结束后续订一次，然后客户想要退款并停止进一步订阅。

<?php

class Paypp {

public static function voidCard($r) {
  $asData = array(
    'METHOD' => 'DoVoid',
    'AUTHORIZATIONID' =>  @ $r['paypal_txn_id'] // tnx_id from subscr_payment IPN
  );
  return self::_sendData($asData);
}

public static function cancelSubscription($r) {
  $asData = array(
    'METHOD' => 'ManageRecurringPaymentsProfileStatus',
    'PROFILEID' =>  @ $r['paypal_subscr_profile_id'], // subscr_id from subscr_payment IPN
    'ACTION' => 'cancel'
  );
  return self::_sendData($asData);
}

public static function refundCard($r) {
  $asData = array(
    'METHOD' => 'RefundTransaction',
    'TRANSACTIONID' =>  @ $r['paypal_txn_id'],
    'REFUNDTYPE' => 'full',
    'CURRENCYCODE' => @ $r['currency'],
    'AMT' => @ $r['gross']
  );
  return self::_sendData($asData);

}

private static function _sendData($asData) {
global $config;

  $sActive = $config->PAYMENT_GATEWAY_DATA->pp->ACTIVE;
  $sURL = $config->PAYMENT_GATEWAY_DATA->pp->$sActive->NVP_URL;

  $sVersion = $config->PAYMENT_GATEWAY_DATA->pp->$sActive->NVP_VERSION;
  $sUser = $config->PAYMENT_GATEWAY_DATA->pp->$sActive->NVP_USER;
  $sPass = $config->PAYMENT_GATEWAY_DATA->pp->$sActive->NVP_PASS;
  $sSig = $config->PAYMENT_GATEWAY_DATA->pp->$sActive->NVP_SIG;

  $asExtra = array(
    'VERSION' => $sVersion,
    'USER' => $sUser,
    'PWD' => $sPass,
    'SIGNATURE' => $sSig
  );
  $asData = array_merge($asData,$asExtra);

  $asOpt = array(
    CURLOPT_HEADER => FALSE,
    CURLOPT_POST => TRUE,
    CURLOPT_RETURNTRANSFER => TRUE,
    CURLOPT_POSTFIELDS => http_build_query($asData),
    CURLOPT_VERBOSE => TRUE,
  );

  $hCurl = curl_init($sURL);

  curl_setopt_array($hCurl, $asOpt);
  $bVerifySSL = @ $config->VERIFY_SSL;
  curl_setopt($hCurl, CURLOPT_SSL_VERIFYPEER, $bVerifySSL);

  $sResponse = curl_exec($hCurl);
  curl_close($hCurl);
  return $sResponse;

}


} // end class

Answer 1

跳过无效步骤。无效仅对授权和订单有效，您不能通过订阅创建任何一个。但是，是的，您需要取消订阅并退还单独的付款。