add_filter( 'wp_feed_cache_transient_lifetime', create_function( '$a', 'return 1800;' ) );
 
function shorten($string, $length)
 {
 // By default, an ellipsis will be appended to the end of the text.
 $suffix = '...';
 
// Convert 'smart' punctuation to 'dumb' punctuation, strip the HTML tags,
 // and convert all tabs and line-break characters to single spaces.
 $short_desc = trim(str_replace(array("\r","\n", "\t"), ' ', strip_tags($string)));
 
// Cut the string to the requested length, and strip any extraneous spaces
 // from the beginning and end.
 $desc = trim(substr($short_desc, 0, $length));
 
// Find out what the last displayed character is in the shortened string
 $lastchar = substr($desc, -1, 1);
 
// If the last character is a period, an exclamation point, or a question
 // mark, clear out the appended text.
 if ($lastchar == '.' || $lastchar == '!' || $lastchar == '?') $suffix='';
 
// Append the text.
 $desc .= $suffix;
 
// Send the new description back to the page.
 return $desc;
 }

<ul>
<?php
include_once(ABSPATH . WPINC . '/feed.php');
$rss = fetch_feed(array(
'http://feeds2.feedburner.com/Majeres',
'http://www.christiane-klein.com/?feed=rss2',
'http://feeds.feedburner.com/AndersReisen',
'http://michaundini.wordpress.com/feed/',
'http://kaffeefreak.vision-rio.de/feed/',
'http://www.letzterstand.de/feed/',
'http://feeds2.feedburner.com/GenesLebenswerk',
'http://www.gregel.com/feed/',
'http://www.zeitstrategie.de/feed/',
'http://feeds.feedburner.com/saphirasworldscrapdesign',
'http://feeds.feedburner.com/kackblog',
'http://feeds2.feedburner.com/plerzelwupp',
'http://feeds.feedburner.com/meinungs-blog',
'http://feeds2.feedburner.com/Zentodone',
'http://feeds2.feedburner.com/Lilu24Blog',
'http://feeds.feedburner.com/markus-arlt-de',
'http://feeds.feedburner.com/Blues-welt',
'http://feeds.feedburner.com/Pesuki',
'http://feeds2.feedburner.com/hombertho',
'http://feeds.feedburner.com/workablogic',
'http://www.blog.muszalik.com/feed/langswitch_lang/en/',
'http://feeds.feedburner.com/oertlin',
'http://feeds2.feedburner.com/gesichtet?format=xml',
'http://feeds2.feedburner.com/blogfrosch'));
$maxitems = $rss->get_item_quantity(5);
$rss_items = $rss->get_items(0, $maxitems);
 
if ($maxitems == 0) echo '<li>No items.</li>';
else
 
foreach ( $rss_items as $item ) : ?>
<li>
<a target="_blank" href='<?php echo $item->get_permalink(); ?>'>
<?php echo $item->get_title(); ?></a><br />
<?php echo shorten($item->get_description(), 100); ?>
<?php get_date('(j.m.Y | H:i '); echo 'Uhr)'; ?>
</li>
<?php endforeach; ?>
</ul>