PHP Youtube Tools

/* #####################################################
	FUNCTION get_feed_data();
	Variables
		$username - Value should be the username of the youtube user's feed you wish to retrieve
	Returned Data
		Data type: Array of Array
		Access
			[index][key]
		Keys / Definitions
		'id' = Youtube video ID
                'title' = Video title
                'description' = Video description
                'date' = Video post date
                'length' = Video length in seconds
                'rating' = Average video rating
                'viewcount' = Total number of video views
                'commentsCount' = Total number of comments
                'watchURL' = URL to view the video on Youtube
                'commentsURL' = API URL for the videos comments
   ##################################################### */
function get_feed_data($userName){
	//get youtube video feed array
	$sxml=simplexml_load_file('http://gdata.youtube.com/feeds/api/users/'.$userName.'/uploads?orderby=updated');
	$youtubeFeed = array();
	foreach ($sxml->entry as $entry) {
		//get media: nodes
		$media = $entry->children('http://search.yahoo.com/mrss/');
		//get video url
		$watchURL = $media->group->player->attributes();
		$watchURL = $watchURL['url'];
		//get yt:duration node for video length (in seconds)
		$length = $media->children('http://gdata.youtube.com/schemas/2007');
		$length = $length->duration->attributes();
		$length = $length['seconds'];
		//get yt:stats node for viewer statistics
		$viewCount = $entry->children('http://gdata.youtube.com/schemas/2007');
		$viewCount = $viewCount->statistics->attributes();
		$viewCount = $viewCount['viewCount'];
		//get gd:comments node for comment count & comments url
		$gd = $entry->children('http://schemas.google.com/g/2005');
		if ($gd->comments->feedLink) {
			$gd = $gd->comments->feedLink->attributes();
			$commentsURL = $gd['href'];
			$commentsCount = $gd['countHint'];
		}
		//get gd:rating node for avg video ratings
		$rating = $entry->children('http://schemas.google.com/g/2005');
		if ($rating->rating) {
			$rating = $rating->rating->attributes();
			$rating = $rating['average'];
		} else {
			$rating = 0;
		}
		//create video array to return to user
		$videoEntry = array (
		  'id' => end(explode("/", $entry->id)),
		  'title' => $entry->title,
		  'description' => $entry->content,
		  'date' => explode("-", $entry->published),
		  'length' => $length,
		  'rating' => $rating,
		  'viewcount' => $viewCount,
		  'commentsCount' => $commentsCount,
		  'watchURL' => $watchURL,
		  'commentsURL' => $commentsURL
		  );
		$videoEntry['date'][2]=substr($videoEntry['date'][2], 0, 2);
		array_push($youtubeFeed, $videoEntry);
	}
	//return videos array
	return $youtubeFeed;
}

/* #####################################################
        FUNCTION get_video_data();
        Variables
		$videoID - The ID of the Youtube video you wish to retrieve data for
        Returned Data
                Data type: Array
                Keys / Definitions
                'title' = Video title
                'description' = Video description
                'date' = Video post date
                'length' = Video length in seconds
                'rating' = Average video rating
                'commentsCount' = Total number of comments
                'watchURL' = URL to view the video on Youtube
                'commentsURL' = API URL for the videos comments
   ##################################################### */
function get_video_data($videoID){
	//get youtube video feed array
	$sxml=simplexml_load_file('https://gdata.youtube.com/feeds/api/videos/'.$videoID.'?v=2');
	//get media: nodes
	$media = $sxml->children('http://search.yahoo.com/mrss/');
	//get video url
	$watchURL = $media->group->player->attributes();
	$watchURL = $watchURL['url'];
	//get yt:duration node for video length (in seconds)
	$length = $media->children('http://gdata.youtube.com/schemas/2007');
	$length = $length->duration->attributes();
	$length = $length['seconds'];
	//get gd:comments node for comment count & comments url
	$gd = $sxml->children('http://schemas.google.com/g/2005');
	if ($gd->comments->feedLink) {
		$gd = $gd->comments->feedLink->attributes();
		$commentsURL = $gd['href'];
		$commentsCount = $gd['countHint'];
	}
	//get gd:rating node for avg video ratings
	$rating = $sxml->children('http://schemas.google.com/g/2005');
	if ($rating->rating) {
		$rating = $rating->rating->attributes();
		$rating = $rating['average'];
	} else {
		$rating = 0;
	}
	//create video array to return to user
	$videoEntry = array (
          'title' => $sxml->title,
          'description' => $media->group->description,
          'date' => explode("-", $sxml->published),
          'length' => $length,
          'rating' => $rating,
          'commentsCount' => $commentsCount,
          'watchURL' => $watchURL,
          'commentsURL' => $commentsURL
        );
	$videoEntry['date'][2]=substr($videoEntry['date'][2], 0, 2);
	//return videos array
	return $videoEntry;
}