通过 API 使用 PHP 和 cURL 将文件上传到 RapidShare

我正在尝试使用带有 cURL 的 API 和 PHP 将文件上传到 RapidShare.到目前为止，我有这个代码:

I'm trying to upload files to RapidShare using their API and PHP with cURL. So far, I've got this code:

// Get the RapidShare server to upload to
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'http://api.rapidshare.com/cgi-bin/rsapi.cgi?sub=nextuploadserver');
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$uploadServer = curl_exec($ch);

// Upload the file to RapidShare
$url = 'http://rs' . $uploadServer . '.rapidshare.com/cgi-bin/rsapi.cgi?sub=upload';
$url .= '&login=login';
$url .= '&password=mypass';
$url .= '&filename=' . $filename;
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, 1);
// Set post fields
$postFields = array('filecontent' => array('@' . $targetDir . '/' . $id));
curl_setopt($ch, CURLOPT_POSTFIELDS, $postFields);
$resp = curl_exec($ch);

die($resp);

但我得到的唯一响应是:错误:子程序无效.(b6ba5d82).如果我只是这样做(基本上不要随请求发送文件):

But the only response I get is: ERROR: Subroutine invalid. (b6ba5d82). If I just do this (basically don't send the file with the request):

// Upload the file to RapidShare
$url = 'http://rs' . $uploadServer . '.rapidshare.com/cgi-bin/rsapi.cgi?sub=upload';
$url .= '&login=login';
$url .= '&password=mypass';
$url .= '&filename=' . $filename;
curl_setopt($ch, CURLOPT_URL, $url);
$resp = curl_exec($ch);

我收到此响应:错误:未传输文件.(f269d341)

所以我猜我通过 POST 发送文件的方式有问题.

So I'm guessing there's something wrong with the way I'm sending the file via POST.

有人知道哪里出了问题吗?

Anyone know what could be wrong?

谢谢.