请求使用HTTP Outh 2身份验证和PHP curl不起作用?

请求使用HTTP Outh 2身份验证和PHP curl不起作用?,php,authentication,curl,Php,Authentication,Curl,我已经使用PHP CURL和以下代码设置了一个http请求 <?php $para='{ "payment_method": "bacs", "payment_method_title": "Direct Bank Transfer", "set_paid": true, "billing": { "first_name": "John", "last_name": "Doe", "address_1": "969 Market",

我已经使用
PHP CURL
和以下代码设置了一个http请求

      <?php

$para='{
  "payment_method": "bacs",
  "payment_method_title": "Direct Bank Transfer",
  "set_paid": true,
  "billing": {
    "first_name": "John",
    "last_name": "Doe",
    "address_1": "969 Market",
    "address_2": "",
    "city": "San Francisco",
    "state": "CA",
    "postcode": "94103",
    "country": "US",
    "email": "john.doe@example.com",
    "phone": "(555) 555-5555"
  },
  "shipping": {
    "first_name": "John",
    "last_name": "Doe",
    "address_1": "969 Market",
    "address_2": "",
    "city": "San Francisco",
    "state": "CA",
    "postcode": "94103",
    "country": "US"
  },
  "line_items": [
    {
      "product_id": 13,
      "quantity": 2
    }

  ]

}';

       $process= curl_init('http://xxx');
        $header[] = 'Content-Type: application/json';
                curl_setopt($process, CURLOPT_HEADER, $header);
                curl_setopt($process, CURLOPT_POST, true);
                curl_setopt($process, CURLOPT_POSTFIELDS, urlencode("oauth_consumer_key=xxxxxxfa18148227334d91&
                   oauth_signature_method=HMAC-SHA1&
                   oauth_signature=xxxxx%253D&
                   oauth_timestamp=xxxx&
                   oauth_nonce=xxXbG&
                   oauth_version=2.0"));
                curl_setopt($process, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($process, CURLOPT_POSTFIELDS, $para);
                $return = curl_exec($process);
                print_r($return);
                curl_close($process);
        ?>

有人请帮我解决这个问题吗?

变量
$process
来自哪里?正如错误所说,它是
null
。请发布完整的代码。错误很明显-作为调用curl_setopt()的第一个参数传递的
$process
为空。与您在标题中提到的OAuth完全无关。在您的代码中,
$process
是调用
curl\u init()
的结果……现在开始阅读:。它说“成功时返回一个cURL句柄,错误时返回FALSE”。所以它真的应该返回一些东西。根据您的代码,它是如何变为null的是一个谜。但是,您可能至少会仔细检查代码,看看对curl_init()的调用是否成功。
  {"code":"woocommerce_rest_cannot_create","message":"Sorry, you are not allowed to create resources.","data":{"status":401}}