将 Paypal 与 php 集成（DoDirectMethod）

Question

我正在关注this 指南以集成贝宝。我不希望用户重定向到贝宝进行付款。所以我需要遵循直接付款方式。

我从该指南中了解到，首先我需要创建两个沙盒帐户（买家和商家）。然后使用类中商家帐户的详细信息（USR，'PWD'，'SIGNATURE'）。所以我创建了一个类（paypal.php），然后通过该类处理付款。我下载了班级需要的cacert.pem。

这是我的课

<?php

class Paypal {


   /**
    * Last error message(s)
    * @var array
    */
   protected $_errors = array();

   /**
    * API Credentials
    * Use the correct credentials for the environment in use (Live / Sandbox)
    * @var array
    */
   protected $_credentials = array(
      'USER' => 'kanavk-facilitator_api1.ocodewire.com',
      'PWD' => '1404460510',
      'SIGNATURE' => 'A4sylwT.LsGOlR5e0Qos27RoSta5AKLvXCCjXXHcGN8Tor8.JxNZxIAs',
   );

   /**
    * API endpoint
    * Live - https://api-3t.paypal.com/nvp
    * Sandbox - https://api-3t.sandbox.paypal.com/nvp
    * @var string
    */
   protected $_endPoint = 'https://api-3t.sandbox.paypal.com/nvp';

   /**
    * API Version
    * @var string
    */
   protected $_version = '74.0';

   /**
    * Make API request
    *
    * @param string $method string API method to request
    * @param array $params Additional request parameters
    * @return array / boolean Response array / boolean false on failure
    */
   public function request($method,$params = array()) {
      $this -> _errors = array();
      if( empty($method) ) { //Check if API method is not empty
         $this -> _errors = array('API method is missing');
         return false;
      }

      //Our request parameters
      $requestParams = array(
         'METHOD' => $method,
         'VERSION' => $this -> _version
      ) + $this -> _credentials;

      //Building our NVP string
      $request = http_build_query($requestParams + $params);

      //cURL settings
      $curlOptions = array (
         CURLOPT_URL => $this -> _endPoint,
         CURLOPT_VERBOSE => 1,
         CURLOPT_SSL_VERIFYPEER => true,
         CURLOPT_SSL_VERIFYHOST => 2,
         CURLOPT_CAINFO => dirname(__FILE__) . '/cacert.pem', //CA cert file
         CURLOPT_RETURNTRANSFER => 1,
         CURLOPT_POST => 1,
         CURLOPT_POSTFIELDS => $request
      );

      $ch = curl_init();
      curl_setopt_array($ch,$curlOptions);

      //Sending our request - $response will hold the API response
      $response = curl_exec($ch);

      //Checking for cURL errors
      if (curl_errno($ch)) {
         $this -> _errors = curl_error($ch);
         curl_close($ch);
         return false;
         //Handle errors
      } else  {
         curl_close($ch);
         $responseArray = array();
         parse_str($response,$responseArray); // Break the NVP string to an array
         return $responseArray;
      }
   }
}

?>

我创建了一个用于处理表单的脚本。包括该类并尝试使用虚拟输入处理付款。但是当我执行脚本时什么都没有发生。

这是我用于处理表单的脚本

<?php
    include("includes/config.php");
    include("includes/paypal.php");
    @session_start();
    include("steps.php");
    error_reporting(0);

$requestParams = array(
   'IPADDRESS' => $_SERVER['REMOTE_ADDR'],
   'PAYMENTACTION' => 'Sale'
);

$creditCardDetails = array(
   'CREDITCARDTYPE' => 'Visa',
   'ACCT' => '4929802607281663',
   'EXPDATE' => '062012',
   'CVV2' => '984'
);

$payerDetails = array(
   'FIRSTNAME' => 'John',
   'LASTNAME' => 'Doe',
   'COUNTRYCODE' => 'US',
   'STATE' => 'NY',
   'CITY' => 'New York',
   'STREET' => '14 Argyle Rd.',
   'ZIP' => '10010'
);

$orderParams = array(
   'AMT' => '500',
   'ITEMAMT' => '496',
   'SHIPPINGAMT' => '4',
   'CURRENCYCODE' => 'GBP'
);

$item = array(
   'L_NAME0' => 'iPhone',
   'L_DESC0' => 'White iPhone, 16GB',
   'L_AMT0' => '496',
   'L_QTY0' => '1'
);

$paypal = new Paypal();



$response = $paypal -> request('DoDirectPayment',
   $requestParams + $creditCardDetails + $payerDetails + $orderParams + $item
);



if( is_array($response) && $response['ACK'] == 'Success') { // Payment successful
   // We'll fetch the transaction ID for internal bookkeeping
   $transactionId = $response['TRANSACTIONID'];

}else echo "failed";

?>

在过去的四个小时里，我一直在摸索，遵循各种指南和教程，但不知道出了什么问题。我需要遵循/下载任何其他步骤/文件吗？

附：我第一次尝试贝宝集成。

Answer 1

您可以使用PayPal SDK轻松做到这一点
只需将其集成到您的代码中并使用此类

 /* Created By RAJA */

 require realpath(dirname(__FILE__) . '/' . 'paymentconfig.php');
 require realpath(dirname(__FILE__) . '/' . '/PayPalSDK/vendor/autoload.php');

 use PayPal\Auth\OAuthTokenCredential;
 use PayPal\Rest\ApiContext;
 use PayPal\Api\Amount;
 use PayPal\Api\Details;
 use PayPal\Api\Item;
 use PayPal\Api\ItemList;
 use PayPal\Api\CreditCard;
 use PayPal\Api\Payer;
 use PayPal\Api\Payment;
 use PayPal\Api\FundingInstrument;
 use PayPal\Api\Transaction;
 use PayPal\Exception\PPConnectionException;

 class PaymentProcessor {

public static function proceedCreditCardTransaction($cardNumber, $cardType, $cardExpMonth, $cardExpYear, $firstName, $lastName, $amountToPay, $description, $currency = CURRENCY) {

    if (!isset($cardNumber) || strlen($cardNumber) <= 10) {
        throw new Exception("Invalid CardNumber : " . $cardNumber);
    }if (!isset($cardType) || strlen($cardType) <= 0) {
        throw new Exception("Invalid CardType : " . $cardType);
    }if (!isset($cardExpMonth) || intval($cardExpMonth) <= 0 || intval($cardExpMonth) > 12) {
        throw new Exception("Invalid Card Expire Month : " . $cardExpMonth);
    }if (!isset($cardExpYear) || strlen($cardExpYear) <= 2) {
        throw new Exception("Invalid Card Expire Year : " . $cardExpYear);
    }if (!isset($firstName) || strlen($firstName) <= 0) {
        throw new Exception("Invalid First Name : " . $firstName);
    }if (!isset($lastName)) {
        throw new Exception("Invalid Last Name : " . $lastName);
    }if (!isset($amountToPay) || strlen($amountToPay) <= 0 || intval($amountToPay) <= 0) {
        throw new Exception("Invalid Amount : " . $amountToPay);
    }if (!isset($currency) || strlen($currency) <= 0) {
        throw new Exception("Invalid Currency : " . $currency);
    }if (!isset($description) || strlen($description) <= 0) {
        throw new Exception("Invalid Description : " . $description);
    }

    $sdkConfig = array(
        "mode" => "sandbox"
    );

    $cred = new OAuthTokenCredential(CLIENT_ID, SECRET, $sdkConfig);

    $apiContext = new ApiContext($cred, 'Request' . time());
    $apiContext->setConfig($sdkConfig);

    $card = new CreditCard();
    $card->setType($cardType);
    $card->setNumber($cardNumber);
    $card->setExpire_month($cardExpMonth);
    $card->setExpire_year($cardExpYear);
    $card->setFirst_name($firstName);
    $card->setLast_name($lastName);

    $fundingInstrument = new FundingInstrument();
    $fundingInstrument->setCredit_card($card);

    $payer = new Payer();
    $payer->setPayment_method("credit_card");
    $payer->setFunding_instruments(array($fundingInstrument));

    $amount = new Amount();
    $amount->setCurrency($currency);
    $amount->setTotal($amountToPay);

    $transaction = new Transaction();
    $transaction->setAmount($amount);
    $transaction->setDescription($description);

    $payment = new Payment();
    $payment->setIntent("sale");
    $payment->setPayer($payer);
    $payment->setTransactions(array($transaction));

    try {
        $payment->create($apiContext);
        return new PaymentParser($payment->toArray());
    } catch (PPConnectionException $ex) {
        throw new Exception($ex->getData());
    }
    //echo json_encode($payment->toArray());        
}

public static function proceedPaypalTransaction($amountToPay, $itemName, $description, $currency = CURRENCY) {

    $sdkConfig = array(
        "mode" => "sandbox"
    );

    $cred = new OAuthTokenCredential(CLIENT_ID, SECRET, $sdkConfig);
    $apiContext = new ApiContext($cred, 'Request' . time());
    $apiContext->setConfig($sdkConfig);

    $payer = new Payer();
    $payer->setPaymentMethod("paypal");

    $item1 = new Item();
    $item1->setName($itemName)
            ->setCurrency($currency)
            ->setQuantity(1)
            ->setPrice($amountToPay);

    $itemList = new ItemList();
    $itemList->setItems(array($item1));

    $amount = new Amount();
    $amount->setCurrency($currency)
            ->setTotal($amountToPay);

    $transaction = new Transaction();
    $transaction->setAmount($amount)
            ->setItemList($itemList)
            ->setDescription($description);

    $payment = new Payment();
    $payment->setIntent("sale")
            ->setPayer($payer)
            ->setTransactions(array($transaction));

    try {
        $payment->create($apiContext);
    } catch (PayPal\Exception\PPConnectionException $ex) {
        echo "Exception: " . $ex->getMessage() . PHP_EOL;
        var_dump($ex->getData());
        exit(1);
    }
}

 }

PAYMENTCONFIG.PHP

define("CURRENCY","USD");

if (!file_exists(__DIR__ . '/PayPalSDK/vendor/autoload.php')) {
    echo "The 'vendor' folder is missing. You must run 'composer update' to resolve     application dependencies.\nPlease see the README for more information.\n";
exit(1);
}
define('PP_CONFIG_PATH', realpath(dirname(__FILE__) . '/' . '/PayPalSDK/sdk_config.ini'));
define('CLIENT_ID', 'CLIENT_ID');
define('SECRET', 'SECRET');

Answer 2

首先你在处理表单中输入了错误的到期日期$creditCardDetails，（输入'EXPDATE'=>'062020'）

并在流程形式上进行以下更改，

来自

if( is_array($response) && $response['ACK'] == 'Success') { // Payment successful
   // We'll fetch the transaction ID for internal bookkeeping
   $transactionId = $response['TRANSACTIONID'];

}else echo "Failed";

到

if( is_array($response) && $response['ACK'] == 'Success') { // Payment successful
    // We'll fetch the transaction ID for internal bookkeeping
    $transactionId = $response['TRANSACTIONID'];    
}else{
    echo "<pre>";
    print_r($response);
}

之后你会得到以下错误，

错误：10501 无效配置。 由于商家配置无效，无法处理此交易。

为解决此错误，在您获得 PayPal 的 PayPal Payments Pro 批准后，您已在您的 PayPal 帐户中接受了“PayPal Payments Pro”协议。如果您已接受他们的协议但仍然收到此错误，则 PayPal 有时也会确认该协议并激活虚拟终端，但不知何故错过了激活 PayPal Payments Pro 本身；如果您的 PayPal“开始”摘要屏幕仅显示虚拟终端，而没有任何关于 PayPal Payments Pro 的信息，请联系 PayPal 支持以激活您的 PayPal Payments Pro 服务。

如果您仅通过普通的 PayPal 个人、企业或高级账户使用 PayPal Payments Standard（即，如果您尚未升级到 PayPal Payments Pro），请转到卖家管理 > 付款首选项并确保您有 PayPal Payments选中标准（而不是 PayPal Payments Pro）并单击提交以保存您所做的任何更改。

如果不接受 PayPal Payments Pro，您将无法使用 Do Direct 方法。