htmentities adds a "1" to the end of my URL's (!)

I've created an RSS feed, using an .xml file that the server parses as .php, for my forums to import content from my site. The URL of the feed is here: http://www.hypersyllogistic.com/rss/mustreadrss.xml

The problem is, using either htmlentities or htmlspecialchars adds a "1" to the end of every URL! How can I resolve this?

Here is the code for mustreadrss.xml:

<?php
header('Content-type: text/xml');
[database inclusion censored]

?>
<rss version="2.0">
<channel>
<title>Hypersyllogistic Must-Read Links</title>
<description>Must-Read Links from the front page of Hypersyllogistic.</description>
<link>http://www.hypersyllogistic.com</link>
<copyright>Jason Vines, 2000-2005.</copyright>

<?php
$query = "SELECT link_name, link_url, link_description, UNIX_TIMESTAMP(date) AS link_date FROM fplinks ORDER BY fplink_id DESC";
$result = mysql_query($query);

while ($array = mysql_fetch_array ($result)) {
    $link_date = strftime("%a, %d %b %Y %T %Z",$array['link_date']);
    $link_name = htmlentities (strip_tags($array['link_name']), ENT_QUOTES);
    $link_url = htmlentities ($array['link_url'], ENT_QUOTES);
    $link_description = htmlentities (str_replace ("<br />", " ", $array['link_description']), ENT_QUOTES);
    $link_description = strip_tags($link_description);
?>

    
    <item>
    <title><?php print $link_name; ?></title>
    <description><?php print $link_description; ?></description>
    <link><?php print $link_url; ?></link>
    <pubDate><?php print $link_date; ?></pubDate>
    </item>
    
<?php
}
?>

</channel>
</rss>

PHP:

 

Never mind; the problem seems to have corrected itself.