chrisrasco/get_youtube_duration.php

## get_youtube_duration.php
<?php

// Call set_include_path() as needed to point to your client library.
require_once 'src/Google/Client.php';
require_once 'src/Google/Service/YouTube.php';
session_start();

/*
 * You can acquire an OAuth 2.0 client ID and client secret from the
 * {{ Google Cloud Console }} <{{ https://cloud.google.com/console }}>
 * For more information about using OAuth 2.0 to access Google APIs, please see:
 * <https://developers.google.com/youtube/v3/guides/authentication>
 * Please ensure that you have enabled the YouTube Data API for your project.
 */
$OAUTH2_CLIENT_ID = 'YOUR ID HERE';
$OAUTH2_CLIENT_SECRET = 'YOUR SECRET HERE';

$client = new Google_Client();
$client->setClientId($OAUTH2_CLIENT_ID);
$client->setClientSecret($OAUTH2_CLIENT_SECRET);
$client->setScopes('https://www.googleapis.com/auth/youtube');
$redirect = filter_var('http://' . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF'],
    FILTER_SANITIZE_URL);
$client->setRedirectUri($redirect);

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

if (isset($_GET['code'])) {
  if (strval($_SESSION['state']) !== strval($_GET['state'])) {
    die('The session state did not match.');
  }

  $client->authenticate($_GET['code']);
  $_SESSION['token'] = $client->getAccessToken();
  header('Location: ' . $redirect);
}

if (isset($_SESSION['token'])) {
  $client->setAccessToken($_SESSION['token']);
}

// Check to ensure that the access token was successfully acquired.
if ($client->getAccessToken()) {
  try{

    // REPLACE this value with the video ID of the video being updated.
    //$videoId = "YOUR VIDEO ID HERE";
    $videoId = $_GET['video_id'];

    // Call the API's videos.list method to retrieve the video resource.
    //$listResponse = $youtube->videos->listVideos("snippet",
    $listResponse = $youtube->videos->listVideos("contentDetails",
        array('id' => $videoId));

    // If $listResponse is empty, the specified video was not found.
    if (empty($listResponse)) {
      $htmlBody .= sprintf('<h3>Can\'t find a video with video id: %s</h3>', $videoId);
    } else {
      // Since the request specified a video ID, the response only
      // contains one video resource.
      $video = $listResponse[0];
      $duration_string = $video['contentDetails']['duration'];
      $pattern = '/PT(([0-9]+)M)?(([0-9]+)S)?/';
      preg_match($pattern, $duration_string, $matches);

      if(!empty($matches[2]))
      {
        $mins = $matches[2];
      }
      else
      {
        $mins = 0;
      }

      if(!empty($matches[4]))
      {
        $secs = $matches[4];
      }
      else
      {
        $secs = 0;
      }

    $htmlBody .= "<h3>Video Duration</h3>";
    $htmlBody .= "<p>".$mins." mins</p>";
    $htmlBody .= "<p>".$secs." secs</p>";
  }
    } 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()));
    }

    $_SESSION['token'] = $client->getAccessToken();
    } else {
      // If the user hasn't authorized the app, initiate the OAuth flow
      $state = mt_rand();
      $client->setState($state);
      $_SESSION['state'] = $state;

      $authUrl = $client->createAuthUrl();
      $htmlBody = <<<END
  <h3>Authorization Required</h3>
  <p>You need to <a href="$authUrl">authorize access</a> before proceeding.<p>
END;
    }
    ?>

    <!doctype html>
    <html>
    <head>
    <title>Video Duration</title>
    </head>
    <body>
          </body>
    </html>
	<?php

	// Call set_include_path() as needed to point to your client library.
	require_once 'src/Google/Client.php';
	require_once 'src/Google/Service/YouTube.php';
	session_start();

	/*
	* You can acquire an OAuth 2.0 client ID and client secret from the
	* {{ Google Cloud Console }} <{{ https://cloud.google.com/console }}>
	* For more information about using OAuth 2.0 to access Google APIs, please see:
	* <https://developers.google.com/youtube/v3/guides/authentication>
	* Please ensure that you have enabled the YouTube Data API for your project.
	*/
	$OAUTH2_CLIENT_ID = 'YOUR ID HERE';
	$OAUTH2_CLIENT_SECRET = 'YOUR SECRET HERE';

	$client = new Google_Client();
	$client->setClientId($OAUTH2_CLIENT_ID);
	$client->setClientSecret($OAUTH2_CLIENT_SECRET);
	$client->setScopes('https://www.googleapis.com/auth/youtube');
	$redirect = filter_var('http://' . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF'],
	FILTER_SANITIZE_URL);
	$client->setRedirectUri($redirect);

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

	if (isset($_GET['code'])) {
	if (strval($_SESSION['state']) !== strval($_GET['state'])) {
	die('The session state did not match.');
	}

	$client->authenticate($_GET['code']);
	$_SESSION['token'] = $client->getAccessToken();
	header('Location: ' . $redirect);
	}

	if (isset($_SESSION['token'])) {
	$client->setAccessToken($_SESSION['token']);
	}

	// Check to ensure that the access token was successfully acquired.
	if ($client->getAccessToken()) {
	try{

	// REPLACE this value with the video ID of the video being updated.
	//$videoId = "YOUR VIDEO ID HERE";
	$videoId = $_GET['video_id'];

	// Call the API's videos.list method to retrieve the video resource.
	//$listResponse = $youtube->videos->listVideos("snippet",
	$listResponse = $youtube->videos->listVideos("contentDetails",
	array('id' => $videoId));

	// If $listResponse is empty, the specified video was not found.
	if (empty($listResponse)) {
	$htmlBody .= sprintf('<h3>Can\'t find a video with video id: %s</h3>', $videoId);
	} else {
	// Since the request specified a video ID, the response only
	// contains one video resource.
	$video = $listResponse[0];
	$duration_string = $video['contentDetails']['duration'];
	$pattern = '/PT(([0-9]+)M)?(([0-9]+)S)?/';
	preg_match($pattern, $duration_string, $matches);

	if(!empty($matches[2]))
	{
	$mins = $matches[2];
	}
	else
	{
	$mins = 0;
	}

	if(!empty($matches[4]))
	{
	$secs = $matches[4];
	}
	else
	{
	$secs = 0;
	}

	$htmlBody .= "<h3>Video Duration</h3>";
	$htmlBody .= "<p>".$mins." mins</p>";
	$htmlBody .= "<p>".$secs." secs</p>";
	}
	} 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()));
	}

	$_SESSION['token'] = $client->getAccessToken();
	} else {
	// If the user hasn't authorized the app, initiate the OAuth flow
	$state = mt_rand();
	$client->setState($state);
	$_SESSION['state'] = $state;

	$authUrl = $client->createAuthUrl();
	$htmlBody = <<<END
	<h3>Authorization Required</h3>
	<p>You need to <a href="$authUrl">authorize access</a> before proceeding.<p>
	END;
	}
	?>

	<!doctype html>
	<html>
	<head>
	<title>Video Duration</title>
	</head>
	<body>
	</body>
	</html>