Как получить следующие 20 результатов в Youtube Api V3

Я работаю с Youtube API V3 с помощью PHP. Я получил первые 20 результатов, и я также получил nextPageToken. Я не уверен, как использовать nextPageToken в php для получения следующей страницы результатов. Вот мой текущий код.

<?php

if(isset($_POST['submit'])){

$q = $_POST['query'];

}
include_once('header.php');
?>
<?php
if(isset($q)) {
require_once 'Google/Config.php';
require_once 'Google/HTTP/REST.php';
require_once 'Google/Client.php';
require_once 'Google/Service.php';
require_once 'Google/Service/Resource.php';
require_once 'Google/Model.php';
require_once 'Google/Collection.php';
require_once 'Google/Service/YouTube.php';
require_once 'Google/Logger/Abstract.php';
require_once 'Google/Logger/Null.php';


/*
* Set $DEVELOPER_KEY to the "API key" value from the "Access" tab of the
* Google Developers Console <https://console.developers.google.com/>
* Please ensure that you have enabled the YouTube Data API for your project.
*/
$DEVELOPER_KEY = 'Here I have My Key';

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

// Define an object that will be used to make all API requests.
$youtube = new Google_Service_YouTube($client);

try {

// Call the search.list method to retrieve results matching the specified
// query term.
$searchResponse = $youtube->search->listSearch('id,snippet', array(
'type' => 'video',
'q' => $q,
'maxResults' => 20,
'pageToken' => $searchResponse['nextPageToken']
));
print_r($searchResponse);
$videoResults = array();
$cattitle = array();
# Merge video ids

foreach ($searchResponse['items'] as $searchResult) {
array_push($videoResults, $searchResult['id']['videoId']);
}
//print_r($searchResponse);


//echo $searchResult['kind']['nextPageToken'];
$videoIds = join(',', $videoResults);

# Code By Shabir.
$linkarr = explode(',', $videoIds);

# Code By Shabir.


# Call the videos.list method to retrieve location details for each video.
$videosResponse = $youtube->videos->listVideos('snippet, recordingDetails', array(
'id' => $videoIds,
));
//print_r ($videosResponse);

//$catname = array();
// Display the list of matching videos.


$title = array();

foreach ($videosResponse['items'] as $videoResult) {
$videos .= sprintf('<li>%s (%s,%s)</li>',
array_push($title, $videoResult['snippet']['title']),
$videocat = $videoResult['snippet']['categoryId'],
$videoResult['recordingDetails']['location']['latitude'],
$videoResult['recordingDetails']['location']['longitude']);
$cat = $youtube->videoCategories->listVideoCategories('snippet', array(
'id' => $videocat
));
}

foreach ($cat['items'] as $cati) {
array_push($cattitle, $cati['snippet']['title']);
print_r($cattitle[1]);
}


} 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()));
}
if(isset($searchResponse['nextPageToken'])) {
$_SESSION[nextToken]=$searchResponse['nextPageToken'];
}

if(isset($searchResponse['prevPageToken'])) {
$_SESSION[prevToken]=$searchResponse['prevPageToken'];
}


<!-- Video Section Start -->
<?php
for($i=0; $i<=19; $i++){
foreach($linkarr as $k=>$value){
$value;

?>
<div class="single">

<div class="image">

<img src="http://img.youtube.com/vi/<?php echo $value;?>/0.jpg" />
<div class="hicon gallery">
<a href="http://www.youtube.com/watch?v=<?php echo $value;?>?rel=0" rel="prettyPhoto" title="<?php //echo $mainTitle;?>">
<img alt="" style="width:48px;height:48px" src="images/zoom.png" />
</a>
</div>

<div class="duration"><span class="ar">&nbsp;&nbsp;&nbsp;&nbsp;</span><?php //echo($time);?></div>

</div>


<div class="title">
<?php print_r($title[$i++]); ?>

</div>


<div class="cat">
<p style="display:inline;margin-right:10px">Category: <?php echo $cati['snippet']['title'] ?></p>
<p style="display:inline">Views: <?php //echo $vTime ?></p>
</div>
<div class="desc"><?php //echo $description; ?></div>

</div>

<?php }}}; ?>

<!-- Video Section End -->
<div class="clr"></div>

</div>


<div class="arrows">

<div class="rarow">

<form method="post" action="page.php">
<input type="hidden" name="no" value="20"  />
<input type="hidden" name="key" value="<?php echo $q; ?>"  />
<input type="submit" value="" name="rpage" class="iarow" />
</form>

</div>
<div class="aarow">
</div>

<div class="clr"></div>

</div>
</div>