您能告诉我PHP中的此Google Drive API调用函数有什么问题吗? [英] can you tell me what's wrong with this google drive API call function in PHP

问题描述

我有这段代码可以运行并从驱动器中获取图像.但是每次运行此代码时，我都会遇到问题.

I've got this code to run and fetch images from my drive. But i'm running into a problem every time I run this code.

  function listF() {

    $result = array();
    $tok = array();
    $nextPageToken = NULL;
  do {
    try {
      $parameters = array();
      if ($nextPageToken) {
        $parameters['pageToken'] = $nextPageToken;
        $parameters['q'] = "mimeType='image/jpeg' or mimeType='image/png'";
      }
      $files = $this->service->files->listFiles($parameters);
      $tok[] = $nextPageToken;
      $result = array_merge($tok, $result, $files->getFiles());
      $nextPageToken = $files->getNextPageToken();
    } catch (Exception $e) {
      print "An error occurred: " . $e->getMessage();
      $nextPageToken = NULL;
    }
  } while ($nextPageToken);
  return $result;
}

我收到此错误:

An error occurred: {
 "error": {
  "errors": [
   {
    "domain": "global",
    "reason": "invalid",
    "message": "Invalid Value",
    "locationType": "parameter",
    "location": "pageToken"
   }
  ],
  "code": 400,
  "message": "Invalid Value"
 }
}

对我来说，这似乎并不非法.也许您可以找到该错误.谢谢

It doesn't really seem illegitimate to me. Perhaps you might able to find the bug. Thanks

推荐答案

我将使用Javascript回答您的 nextPageToken 问题，只需注意一下逻辑即可.我有两个相同的listFile()函数.一个在初始加载时执行，加载页面后，它显示了我的100个文件中的前10个.另一个在每次单击按钮时执行.

I'll answer your nextPageToken problem using Javascript, just take note of the logic. I have two listFile() functions which are identical. One executes at initial load, after loading the page, it shows the first 10 of my 100 files. The other executes each time a button is clicked.

第一个功能，显示最初的10个文件.

First function to display the inital 10 files.

//take note of this variable
  var nextToken ;
  function listFiles() {
    gapi.client.drive.files.list({
      'pageSize': 10,
      'fields': "*"
    }).then(function(response) {

          //assign the nextPageToken to a variable to be used later
          nextToken = response.result.nextPageToken;
          // do whatever you like here, like display first 10 files in web page
          // . . .
        });
      }

第二功能:通过单击名为下一页"的按钮触发此功能，该按钮显示从11到N的后续文件.

Second function: This function is triggered by click of a button named "Next Page" which displays the succeeding files from 11 to N.

 function gotoNextPage(event) {
          gapi.client.drive.files.list({
            'pageSize': 10,
            'fields': "*",
            'pageToken': nextToken
          }).then(function(response) {
            //assign new nextPageToken to make sure new files are displayed
            nextToken = response.result.nextPageToken;
            //display batch of file results in the web page
            //. . .          
          });
  }

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