Get all my videos (including private ones) using OAuth2 - php

Question

I currently have something working where it gets all of my videos based on my Youtube username. Now I need to have it pull my private videos as well.
How I need everything to work is as I upload a video to Youtube it automatically embeds on my webpage which is password protected.
I created my API key and also used the Oauth 2.0 Sandbox and was able to retrieve all of the videos, including private but I do not know how to integrate the Oauth with my current coding which is below:
<?php
// set feed URL
$feedURL = 'http://gdata.youtube.com/feeds/api/users/tprestinario/uploads';
// read feed into SimpleXML object
$sxml = simplexml_load_file($feedURL);
?>
<h1><?php echo $sxml->title; ?></h1>
<?php
// iterate over entries in feed
foreach ($sxml->entry as $entry) {
// get nodes in media: namespace for media information
$media = $entry->children('http://search.yahoo.com/mrss/');
// get video player URL
$attrs = $media->group->player->attributes();
$watch = $attrs['url'];
// get video thumbnail
$attrs = $media->group->thumbnail[0]->attributes();
$thumbnail = $attrs['url'];
// get <yt:duration> node for video length
$yt = $media->children('http://gdata.youtube.com/schemas/2007');
$attrs = $yt->duration->attributes();
$length = $attrs['seconds'];
$videoid = $yt->videoid[0];
?>
<div class="item">
<h1><?php echo $media->group->title; ?></h1>
<p><?php echo $media->group->description; ?></p>
<iframe width="560" height="315" src="http://www.youtube.com/embed/<?php echo $videoid; ?>" frameborder="0" allowfullscreen></iframe>
</div>
<?php
}
?>

Answer 1

If you use YouTube Data API V3 that would be much easier.
Here's a nice example for this use case.
"https://code.google.com/p/youtube-api-samples/source/browse/samples/php/my_uploads.php"