<?php
function getYoutubeId($ytURL)
{
$urlData = parse_url($ytURL);
//echo '<br>'.$urlData["host"].'<br>';
if($urlData["host"] == 'www.youtube.com') // Check for valid youtube url
{
$ytvIDlen = 11; // This is the length of YouTube's video IDs
// The ID string starts after "v=", which is usually right after
// "youtube.com/watch?" in the URL
$idStarts = strpos($ytURL, "?v=");
// In case the "v=" is NOT right after the "?" (not likely, but I like to keep my
// bases covered), it will be after an "&":
if($idStarts === FALSE)
$idStarts = strpos($ytURL, "&v=");
// If still FALSE, URL doesn't have a vid ID
if($idStarts === FALSE)
die("YouTube video ID not found. Please double-check your URL.");
// Offset the start location to match the beginning of the ID string
$idStarts +=3;
// Get the ID string and return it
$ytvID = substr($ytURL, $idStarts, $ytvIDlen);
return $ytvID;
}
else
{
//echo 'This is not a valid youtube video url. Please, give a valid url...';
return 0;
}
}
// function to parse a video <entry>
function parseVideoEntry($youtubeVideoID)
{
$obj= new stdClass;
// set video data feed URL
$feedURL = 'http://gdata.youtube.com/feeds/api/videos/' . $youtubeVideoID;
// read feed into SimpleXML object
$entry = simplexml_load_file($feedURL);
// get nodes in media: namespace for media information
$media = $entry->children('http://search.yahoo.com/mrss/');
$obj->title = $media->group->title;
$obj->description = $media->group->description;
// get video player URL
$attrs = $media->group->player->attributes();
$obj->watchURL = $attrs['url'];
// get video thumbnail
$attrs = $media->group->thumbnail[0]->attributes();
$obj->thumbnailURL = $attrs['url'];
// get <yt:duration> node for video length
$yt = $media->children('http://gdata.youtube.com/schemas/2007');
$attrs = $yt->duration->attributes();
$obj->length = $attrs['seconds'];
// get <yt:stats> node for viewer statistics
$yt = $entry->children('http://gdata.youtube.com/schemas/2007');
$attrs = $yt->statistics->attributes();
$obj->viewCount = $attrs['viewCount'];
// get <gd:rating> node for video ratings
$gd = $entry->children('http://schemas.google.com/g/2005');
if ($gd->rating) {
$attrs = $gd->rating->attributes();
$obj->rating = $attrs['average'];
} else {
$obj->rating = 0;
}
// get <gd:comments> node for video comments
$gd = $entry->children('http://schemas.google.com/g/2005');
if ($gd->comments->feedLink) {
$attrs = $gd->comments->feedLink->attributes();
$obj->commentsURL = $attrs['href'];
$obj->commentsCount = $attrs['countHint'];
}
return $obj;
}
$youtubeVideoLink = $_REQUEST['videoID'];
//$youtubeVideoLink = 'http://tutsbucket.com/2010/11/css3-drop-down-menu/';
$videoId = getYoutubeId($youtubeVideoLink);
if($videoId == '0')
{
echo 'This is not a valid youtube video url. Please, give a valid url...';
}
else
{
$videoInfo = parseVideoEntry($videoId);
// display main video record
//echo "</table>";
//echo '<br><br>';
// read 'video comments' feed into SimpleXML object
// parse and display each comment
//if ($videoInfo->commentsURL && $videoInfo->commentsCount > 0)
//{
//$commentsFeed = simplexml_load_file($videoInfo->commentsURL);
//echo "<tr><td colspan=\"2\"><h3>" . $commentsFeed->title .
//"</h3></td></tr>\n";
//echo "<tr><td colspan=\"2\"><ol>\n";
//foreach ($commentsFeed->entry as $comment)
}
echo ''.$videoInfo->title;
?>
