使用YouTube API获取视频：突破2万视频限制并访问私有视频

<?php

require_once __DIR__ . '/vendor/autoload.php';

$client = new Google_Client();
$client->setApplicationName('Your Application Name'); // 替换为你的应用名称
$client->setScopes([
    'https://www.googleapis.com/auth/youtube.force-ssl',
]);

$client->setAuthConfig('YOUR_CLIENT_SECRET_FILE.json'); // 替换为你的client_secret.json文件路径
$client->setAccessType('offline');

// Request authorization from the user.
$authUrl = $client->createAuthUrl();
printf("Open this link in your browser:\n%s\n", $authUrl);
print('Enter verification code: ');
$authCode = trim(fgets(STDIN));

// Exchange authorization code for an access token.
$accessToken = $client->fetchAccessTokenWithAuthCode($authCode);
$client->setAccessToken($accessToken);

// Define service object for making API requests.
$service = new Google_Service_YouTube($client);

$queryParams = [
    'channelId' => 'YOUR_CHANNEL_ID', // 替换为你的频道ID
    'part' => 'snippet,contentDetails', // 获取更多信息
    'maxResults' => 50 // 每次获取50个视频，可以根据需要调整
];

$videos = [];
$pageToken = null;

do {
    if ($pageToken) {
        $queryParams['pageToken'] = $pageToken;
    }

    $searchResponse = $service->search->listSearch('id,snippet', $queryParams);

    foreach ($searchResponse['items'] as $searchResult) {
        if ($searchResult['id']['kind'] == 'youtube#video') {
            $videos[] = [
                'videoId' => $searchResult['id']['videoId'],
                'title' => $searchResult['snippet']['title'],
                'description' => $searchResult['snippet']['description'],
                // ... 可以根据需要添加更多属性
            ];
        }
    }

    $pageToken = $searchResponse->getNextPageToken();

} while ($pageToken);

print_r($videos);