Super Simple Instapaper Likes List with Simplepie

instapaper_likes.php

<?php

@include 'php/simplepie/simplepie.inc';
$instapaper_url = "YOUR INSTAPAPER RSS FEED HERE";

$feed = new SimplePie();
$feed->set_feed_url($instapaper_url);
// $feed->enable_cache(false); 		// for use before setting up caching
$feed->set_cache_location($_SERVER['DOCUMENT_ROOT'] . '/php/simplepie/cache');
$feed->set_cache_duration(60*15);
$feed->handle_content_type(); /* important, sets to UTF-8 */


$feed->init();

if ($feed->get_item_quantity() > 0):
	echo '<ul>';
	foreach ($feed->get_items(0,5) as $like): ?>

	<li>
		<a href="<?=$like->get_permalink()?>" target="_blank">
			<? if (strlen($like->get_title()) > 55) {
				echo substr($like->get_title(),0,55), '&hellip;';
			} else echo $like->get_title(); ?>
		</a>
	</li>

<? endforeach; 
endif; ?>