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Question

因为我想要介绍我的第一步。

我使用了这个例子：PHP Quickstart

1. 通过composer安装google / apiclient
2. 在Google Developers Console中创建项目
3. 向我的项目添加凭据
4. 将client_secret.json上传到我的网络服务器
5. 运行脚本＆amp;输入代码
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Credentials saved to /files/php-yt-oauth2.json
This channel's ID is UC_x5XG1OV2P6uZZ5FSM9Ttw. Its title is Google Developers, and it has 125874726 views.
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现在我要列出一个播放列表的所有视频：

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function playlistItemsListByPlaylistId($service, $part, $params) {
    $params = array_filter($params);
    $response = $service->playlistItems->listPlaylistItems(
        $part,
        $params
    );

    print_r($response);
}

playlistItemsListByPlaylistId($service,
    'snippet',
    array('maxResults' => 1, 'playlistId' => 'ID'));
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收到以下错误：

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[23-Dec-2017 14:29:59 Europe/Berlin] PHP Fatal error:  Uncaught Google_Service_Exception: {
 "error": {
  "errors": [
   {
    "domain": "global",
    "reason": "insufficientPermissions",
    "message": "Insufficient Permission"
   }
  ],
  "code": 403,
  "message": "Insufficient Permission"
 }
}
 in /html/sa/vendor/google/apiclient/src/Google/Http/REST.php:118
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我不知道哪里出错了，我希望有人可以帮我解决这个问题。