Question

我正在尝试使用PHP将文件上传到Google云端硬盘。

对于授权码，我使用以下范围：

https://www.googleapis.com/auth/drive  
https://docs.google.com/feeds/  
https://docs.googleusercontent.com/  
https://spreadsheets.google.com/feeds/

我已收到有效的refresh_token，我可以随时使用它来获取新的access_token。

现在的问题是，当我尝试使用此access_token（未被曝光，尚未使用）执行上传时，它说：

stdClass Object
(
    [error] => stdClass Object
        (
            [errors] => Array
                (
                    [0] => stdClass Object
                        (
                            [domain] => global
                            [reason] => required
                            [message] => Login Required
                            [locationType] => header
                            [location] => Authorization
                        )

                )

            [code] => 401
            [message] => Login Required
        )
)

我正在使用curl和以下标题：

Array
(
    [0] => Content-Type: text/plain
    [1] => Content-Length: 503242
    [2] => Authorization: Bearer ya29.AHES6ZRWXZkZDDi6AFV9PK2QonHp93nIfJbYqipXFT1uCsg
    [3] => GData-Version: 3.0
)

以下网址：

https://www.googleapis.com/upload/drive/v2/files?uploadType=media

CURL命令就像：

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HTTPHEADERS, $headers);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, file_get_contents($file));
$return = curl_exec($ch);
curl_close($ch);

任何帮助都将深受赞赏...... 提前谢谢......