通过PHP curl使用Paypal连接的路径预先登录

我将继续学习本教程，拨打合作伙伴推荐电话

这是我在PHP上使用的代码

<?php

$curl = curl_init();

curl_setopt_array($curl, array(
    CURLOPT_URL => 'https://api.sandbox.paypal.com/v2/customer/partner-referrals',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_ENCODING => "",
    CURLOPT_MAXREDIRS => 10,
    CURLOPT_TIMEOUT => 30,
    CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
    CURLOPT_CUSTOMREQUEST => "POST",
    CURLOPT_POSTFIELDS =>'{
    "tracking_id":"MyTrackingId",
    "operations": [
      {
        "operation": "API_INTEGRATION",
        "api_integration_preference": {
          "rest_api_integration": {
            "integration_method": "PAYPAL",
            "integration_type": "THIRD_PARTY",
            "third_party_details": {
              "features": [
                "PAYMENT",
                "REFUND",
              ]
            }
          }
        }
      }
    ],
    "products": [
      "EXPRESS_CHECKOUT"
    ],
    "legal_consents": [
      {
        "type": "SHARE_DATA_CONSENT",
        "granted": true
      }
    ]
}',
    CURLOPT_HTTPHEADER => array(
        'accept-language: en_US',
        'authorization: Bearer MySecretCode',
        'content-type: application/json',
    ),
));

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
    echo "cURL Error #:" . $err;
} else {
    echo '<pre>';
    print_r(json_decode($response));
    echo '</pre>';
}
echo '<hr>';

---

不知道我做错了什么。我不确定它是否与

CURLOPT\u POSTFIELDS

中的代码有关。我试着修改它并使用在线curl-to-PHP转换器，但问题仍然是一样的。

json无效

“退款”，

@lawrencerone谢谢你回复我。。。我尝试了一个JSON验证器，但我被那个错误卡住了。我怎样才能修复它呢？请删除尾随的

，

json无效

“退款”，

@lawrencerone谢谢你回复我。。。我尝试了一个JSON验证器，但我被那个错误卡住了。如何修复它？请删除尾随的

，

stdClass Object
(
    [name] => INVALID_REQUEST
    [message] => Request is not well-formed, syntactically incorrect, or violates schema.
    [debug_id] => 9e151f0c8c5f0
    [information_link] => 
    [details] => Array
        (
            [0] => stdClass Object
                (
                    [issue] => INVALID_PARAMETER_SYNTAX
                    [description] => Referral data is not a valid json object.
                )

        )

    [links] => Array
        (
        )

)