如何在PHP中恢复到YouTube的可恢复上传

我正在使用可恢复上传方法将大型文件从服务器传输到YouTube，请参见下面的代码。当我在PHP处理过程中发现错误时，如何保存/恢复上载？更准确地说，上传的实际状态存储在哪里？上传中断后，文件指针放在哪里

    /*
        Uploads one file to youtube chunk by chunk
    */
    function uploadFile($dbfile) {
        $client = $this->client;
        $youtube = new Google_Service_YouTube($client);
        $htmlBody = "";
        try {

            // Create a snippet with title, description, tags and category ID
            // Create an asset resource and set its snippet metadata and type.
            // This example sets the video's title, description, keyword tags, and
            // video category.
            $snippet = new Google_Service_YouTube_VideoSnippet();
            $snippet->setTitle("SO Example");

            // Numeric video category. See
            // https://developers.google.com/youtube/v3/docs/videoCategories/list 
            $snippet->setCategoryId("22");

            // Set the video's status to "public". Valid statuses are "public",
            // "private" and "unlisted".
            $status = new Google_Service_YouTube_VideoStatus();
            $status->privacyStatus = "private";

            // Associate the snippet and status objects with a new video resource.
            $video = new Google_Service_YouTube_Video();
            $video->setSnippet($snippet);
            $video->setStatus($status);

            // Specify the size of each chunk of data, in bytes. Set a higher value for
            // reliable connection as fewer chunks lead to faster uploads. Set a lower
            // value for better recovery on less reliable connections.
            $chunkSizeBytes = 1 * 1024 * 1024;

            // Setting the defer flag to true tells the client to return a request which can be called
            // with ->execute(); instead of making the API call immediately.
            $client->setDefer(true);

            // Create a request for the API's videos.insert method to create and upload the video.
            $insertRequest = $youtube->videos->insert("status,snippet", $video);

            // Create a MediaFileUpload object for resumable uploads.
            $media = new Google_Http_MediaFileUpload(
                $client,
                $insertRequest,
                'video/*',
                null,
                true,
                $chunkSizeBytes
            );
            $media->setFileSize(filesize($dbfile->localfile));

            // Read the media file and upload it chunk by chunk.
            $status = false;
            $handle = fopen($dbfile->localfile, "rb");
            while (!$status && !feof($handle)) {
              $chunk = fread($handle, $chunkSizeBytes);
              $status = $media->nextChunk($chunk);
            }

            fclose($handle);

            // If you want to make other calls after the file upload, set setDefer back to false
            $client->setDefer(false);

            $log = array("success" => true, "snippet_id" => $status["id"]);
        } catch (Google_ServiceException $e) {
            $log = array("success" => false, "errormsg" => $e->getMessage());
        } catch (Google_Exception $e) {
            $log = array("success" => false, "errormsg" => $e->getMessage());
        }
        return $log;
    }

---

文件有多大？你犯了什么错误？当你通过YouTube上传类似大小的视频时，你能成功上传吗？@not_a_机器人：谢谢你的关注。嗯，是的，我可以上传文件，但不总是这样。这些文件的大小约为3-5GB。每次失败时是否都会收到特定的错误消息？我想你要找的答案是在你阅读媒体文件并逐块上传的部分。似乎它应该保存最新的块，您可以使用它继续上传视频。如果您的internet连接不太可靠，可以尝试减少$chunkSizeBytes。查看客户端源代码也可能有帮助：