Accessing YouTube yt:rating (like/dislike) system in PHP - php

Question

I'm using PHP to access YouTube video attributes e.g. title, url, thumbnail, duration etc.
Not that gd:rating (5 star ratings) has been replaced by yt:rating (like/dislike system), I'm trying to modify my PHP.
gd:rating (old)
$gd = $entry->children('http://schemas.google.com/g/2005');
if ($gd->rating) {
$attrs = $gd->rating->attributes();
$rating = $attrs['average'];
} else {
$rating = 0;
}
yt:rating (new)
$yt = $entry->children('http://gdata.youtube.com/schemas/2007');
if ($yt->rating && $yt->rating[0]->attributes()) {
$attrs = $yt->rating[0]->attributes();
$videoobj[$loopCounter]['dislikes'] = strval($attrs['numDislikes']);
$videoobj[$loopCounter]['likes'] = strval($attrs['numLikes']);
} else {
$videoobj[$loopCounter]['dislikes'] = 0;
$videoobj[$loopCounter]['likes'] = 0;
}
Using the yt:rating code didn't work. Even if I do a print_r($yt->rating);, there is nothing in the array.
Where am I going wrong?

Answer 1

Correction. You can.
The URL you access needs this appended to the end:
$url = 'http://gdata.youtube.com/feeds/api/videos/' . $vid . '?v=2';
That made all the difference - so the last bit of my code:
// get <yt:rating> node for like/dislikes
$yt = $entry->children('http://gdata.youtube.com/schemas/2007');
$attrs = $yt->rating->attributes();
$obj->dislikes = $attrs['numDislikes'];
$obj->likes = $attrs['numLikes'];
echo $obj->dislikes;
echo ' ';
echo $obj->likes;