youtube data api v3 php search pagination?

Question

i am trying with youtube api v3 php search...

first time i'm using this api for this i am beginner...

i have 3 question;

1) how can below search list showing pagination numbers? (per page 50 result)

2) how can video duration show in list? (3:20 min:second)

3) how can order viewCount

if ($_GET['q']) {
  require_once 'src/Google_Client.php';
  require_once 'src/contrib/Google_YoutubeService.php';
  $DEVELOPER_KEY = 'my key';

  $client = new Google_Client();
  $client->setDeveloperKey($DEVELOPER_KEY);
  $youtube = new Google_YoutubeService($client);

  try {
    $searchResponse = $youtube->search->listSearch('id,snippet', array(
      'q' => $_GET['q'],
      'maxResults' => 50,
      'type' => "video",
    ));

  foreach ($searchResponse['items'] as $searchResult) {

    $videos .= '<li style="clear:left"><img src="'.$searchResult['snippet']['thumbnails']['default']['url'].'" style="float:left; margin-right:18px" alt="" /><span style="float:left">'.$searchResult['snippet']['title'].'<br />'.$searchResult['id']['videoId'].'<br />'.$searchResult['snippet']['publishedAt'].'<br />'.$item['contentDetails']['duration'].'</span></li>';
}




$htmlBody .= <<<END
    <ul>$videos</ul>
END;
  } catch (Google_ServiceException $e) {
    $htmlBody .= sprintf('<p>A service error occurred: <code>%s</code></p>',
      htmlspecialchars($e->getMessage()));
  } catch (Google_Exception $e) {
    $htmlBody .= sprintf('<p>An client error occurred: <code>%s</code></p>',
      htmlspecialchars($e->getMessage()));
  }
}

Answer 1

1) how can below search list showing pagination numbers? (per page 50 result)

You need to write your own cacheing logic to implement this feature because with every result you get two tokens "NextPageToken" and "PreviousPageToken" and subsequent query must contain that token number to get next page or previous page token like below.

So whenever results are not available at cache then you should send either nextpagetoken or previous page token.

https://www.googleapis.com/youtube/v3/search?key=API_KEY&part=snippet&q=japan&maxResults=10&order=date&pageToken=NEXT_or_PREVIOUS_PAGE_TOKEN

In particular your case where you need 50 pages per page and you are showing 3 pagination like (1,2,NEXT) then you need to fetch results two times. Both the results you will keep in cache so for page 1 and 2 results will be retrieved from cache. For next you make it sure that you are making query google again by sending nextPageToken.

Thus to show pagination 1-n and every page 50 results then you need to make n-1 queries to google api. But if you are showing 10 results per page then you cane make single query of 50 results using which you can show first 5 pages (1-5) with the help of retrieved results and at next you should again send next page token like above.

NOTE- Google youtube api provide 50 results max.

2) how can video duration show in list? (3:20 min:second)

Youtube API v3 do not return video duration at simple first search response. To get video duration we need to make one extra call to youtube api like below.

https://www.googleapis.com/youtube/v3/videos?id=VIDEO_ID1%2CVIDEO_ID2&part=contentDetails&key=API_KEY (max 50 IDs)

This issue is highlighted in "http://code.google.com/p/gdata-issues/issues/detail?id=4294".I posted my answer here too.

Hence if we want to display video duration then we need to make two calls every time.

3) how can order viewCount

Trigger below query it will provide results ordered by view count.

https://www.googleapis.com/youtube/v3/search?key=KEY&part=snippet&q=japan&maxResults=5&order=viewCount

For detail please refer this - https://developers.google.com/youtube/v3/docs/search/list#order