PHP cURL：使用-F选项发出cURL请求

我使用的是Forte REST API，这里我需要发出如下的cURL请求：-

curl 
    -H "Authorization: Basic {encoded APIAccessID:APISecureKey string}" 
    -H "X-Forte-Auth-Organization-Id: org_300005" 
    -F document={"resource":"application","resource_id":"app_103448","description":"receipt"};type=application/json 
    -F file:@filename.jpg
"/organizations/org_300005/documents"

我尝试通过以下方式将其转换为PHP cURL请求：-

<?php
$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, 'https://sandbox.forte.net/api/v3/organizations/org_380481/documents');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'POST');

$headers = array();
$headers[] = 'Authorization: Basic {auth_key}';
$headers[] = 'X-Forte-Auth-Organization-Id: org_380481';
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

curl_setopt(
    $ch,
    CURLOPT_POSTFIELDS,
    array(
      'file' => '@' . realpath('example.txt'),
      'document' => '{"resource":"application","resource_id":"app_103448","description":"receipt"};type=application/json'
    ));

$result = curl_exec($ch);
if (curl_errno($ch)) {
    echo 'Error:' . curl_error($ch);
}
curl_close($ch);

var_dump($result);
?>

根据他们的文档，该请求将生成一个到Forte的HTTP请求，类似于以下内容：

POST /api/v3/organizations/org_300005/documents HTTP/1.1
Host: sandbox.forte.net
User-Agent: curl/7.46.0
Accept: application/json; charset=utf-8
Content-Type: multipart/mixed; boundary=--abcdefghijklmnopqrstuvwxyz
Content-Length: 8469
Authorization: Basic {encoded APIAccessID:APISecureKey string} 
X-Forte-Auth-Organization-Id: org_300005
--abcdefghijklmnopqrstuvwxyz
Content-Disposition:form-data; filename="filename.jpg"
Content-Type: image/jpeg
<binary content of filename.jpg>
--abcdefghijklmnopqrstuvwxyz
Content-Type: application/json
{"resource":"application","resource_id":"app_103448","description":"reciept"}
--abcdefghijklmnopqrstuvwxyz--

POST/api/v3/organizations/org_300005/documents HTTP/1.1
主机：sandbox.forte.net
用户代理：curl/7.46.0
接受：application/json；字符集=utf-8
内容类型：多部分/混合；边界=--abcdefghijklmnopqrstuvxyz
内容长度：8469
授权：基本{编码的APIAccessID:APICureKey字符串}
X-Forte-Auth-Organization-Id:org_300005
--abcdefghijklmnopqrstuvwxyz
内容配置：表单数据；filename=“filename.jpg”
内容类型：图像/jpeg
--abcdefghijklmnopqrstuvwxyz
内容类型：application/json
{“资源”：“应用程序”，“资源id”：“应用程序103448”，“说明”：“接收”}
--abcdefghijklmnopqrstuvwxyz--

---

Forte API原始链接是：

您的代码缺少一些他们期望的标题：

$headers[] = 'User-Agent: curl/7.46.0';
$headers[] = 'Accept: application/json; charset=utf-8';
$headers[] = 'Content-Type: multipart/mixed; boundary=--abcdefghijklmnopqrstuvwxyz';

尤其是他们对明星的抱怨：

请求正文中缺少内容类型

---

向代码中添加如上所述的标题以解决问题，请确保将

边界=--abcdefghijklmnopqrstuvwxyz

示例更改为您使用的实际边界。

CURLOPT_VERBOSE

以调试您发送的内容（以及被投诉的是POST-payload还是multipart部分）。现在显示-{“response”：{“环境”：“sandbox”，“response_desc”：“请求正文中未收到任何数据。请验证请求中是否填充了以下内容：填充了内容类型http标头、填充了内容长度http标头、填充了请求正文。”}}}您能否解释一下这里的边界是什么，它们实际上是什么意思？

$headers[] = 'User-Agent: curl/7.46.0';
$headers[] = 'Accept: application/json; charset=utf-8';
$headers[] = 'Content-Type: multipart/mixed; boundary=--abcdefghijklmnopqrstuvwxyz';