php - 使用 PHP 的 PayPal curl 调用没有响应

Question

我已经看到了一些关于这个问题的建议，但到目前为止都没有帮助。我有一个用于进行 cURL 调用的简单小类，它绝对有效，因为我已经在其他主机调用中尝试过它。这是类(class):

class CurlHelper
{
    public static function Post($URL, $Fields = array(), $DieExplainError = false)
    {
        return self::Call(array(
            CURLOPT_URL             => $URL,
            CURLOPT_RETURNTRANSFER  => true,
            CURLOPT_POST            => count($Fields),
            CURLOPT_POSTFIELDS      => http_build_query($Fields)
        ), $DieExplainError);
    }

    public static function Call($Array, $DieExplainError = false)
    {
        $ch = curl_init();

        curl_setopt_array($ch, $Array);

        $Result = curl_exec($ch);

        if($DieExplainError && curl_error($ch))
            die(curl_error($ch));

        curl_close($ch);

        return $Result;
    }
}

这只是意味着我可以指定一个主机和一个要发布的值数组，并且 Post 方法返回任何它的响应。

然后，对于我的 PayPal 调用，我将执行以下操作:

$Response = CurlHelper::Post("https://api-3t.sandbox.paypal.com/nvp", array(
    CURLOPT_HEADER                      => false,
    CURLOPT_SSL_VERIFYPEER              => false,
    CURLOPT_SSL_VERIFYHOST              => false,
    "USER"                              => "user",
    "PWD"                               => "pass",
    "SIGNATURE"                         => "sig",
    "METHOD"                            => "SetExpressCheckout",
    "VERSION"                           => 86,
    "PAYMENTREQUEST_0_PAYMENTACTION"    => "SALE",
    "PAYMENTREQUEST_0_AMT"              => 19,
    "PAYMENTREQUEST_0_CURRENCYCODE"     => "GBP",
    "cancelUrl"                         => "myurl",
    "returnUrl"                         => "myurl"
), true);

die("test: ".print_r($Response));

据我所知，这至少应该返回一些东西？即使这是一个错误，但我绝对一无所获。

我傻了吗？

• 编辑 -

在 Ghulam Ali 的评论之后，他指出我将 CURLOPT 参数传递到 post 数组而不是实际的 curl 选项。所以我做了这些改变:

CurlHelper的Post方法:

public static function Post($URL, $Fields = array(), $DieExplainError = false)
    {
        return self::Call(array(
            CURLOPT_URL             => $URL,
            CURLOPT_RETURNTRANSFER  => true,
            CURLOPT_HEADER          => false,
            CURLOPT_SSL_VERIFYPEER  => false,
            CURLOPT_SSL_VERIFYHOST  => false,
            CURLOPT_POST            => count($Fields),
            CURLOPT_POSTFIELDS      => http_build_query($Fields)
        ), $DieExplainError);
    }

PayPal 调用:

$Response = CurlHelper::Post("https://api-3t.sandbox.paypal.com/nvp", array(
    "USER"                              => "",
    "PWD"                               => "",
    "SIGNATURE"                         => "",
    "METHOD"                            => "SetExpressCheckout",
    "PAYMENTREQUEST_0_PAYMENTACTION"    => "SALE",
    "PAYMENTREQUEST_0_AMT"              => 19,
    "PAYMENTREQUEST_0_CURRENCYCODE"     => "GBP",
    "cancelUrl"                         => "",
    "returnUrl"                         => ""
), true);

但不幸的是，我仍然遇到 SSL 错误。所说的很有道理，但不知何故仍然行不通:(

Answer 1

您错误地将参数发送到您的类函数。

CURLOPT_HEADER                      => false,
CURLOPT_SSL_VERIFYPEER              => false,
CURLOPT_SSL_VERIFYHOST              => false,

这些是 curl 选项而不是 Post 变量。您将这些选项作为 Post 变量发送。一种方法是更新您的 Curl 函数。

return self::Call(array(
    CURLOPT_URL             => $URL,
    CURLOPT_HEADER          => false,
    CURLOPT_SSL_VERIFYPEER  => false,
    CURLOPT_SSL_VERIFYHOST  => false,
    CURLOPT_RETURNTRANSFER  => true,
    CURLOPT_POST            => count($Fields),
    CURLOPT_POSTFIELDS      => http_build_query($Fields)
), $DieExplainError);

然后像这样调用你的类函数:

$Response = CurlHelper::Post("https://api-3t.sandbox.paypal.com/nvp", array(
    "USER"                              => "user",
    "PWD"                               => "pass",
    "SIGNATURE"                         => "sig",
    "METHOD"                            => "SetExpressCheckout",
    "VERSION"                           => 86,
    "PAYMENTREQUEST_0_PAYMENTACTION"    => "SALE",
    "PAYMENTREQUEST_0_AMT"              => 19,
    "PAYMENTREQUEST_0_CURRENCYCODE"     => "GBP",
    "cancelUrl"                         => "myurl",
    "returnUrl"                         => "myurl"
));