RSS Feed aus Datenbank

$res = mysql_query("select * from db");
$i = 0
while ($dsatz = mysql_fetch_assoc($res)){
 rss[$i]["title"] = $dsatz["title"];
 rss[$i]["description"] = $dsatz["description"];
 rss[$i]["link"] = $dsatz["link"];
 $i++;
}

echo "<?xml version=\"1.0\" encoding=\"utf-8\"?>
 
<rss version=\"2.0\">
 
  <channel>
    <title>Titel des Feeds</title>
    <link>URL der Webpräsenz</link>
    <description>Kurze Beschreibung des Feeds</description>";
foreach($rss as $item){
echo "
<item>
 <title>".$item["title"]."</title>
 <description>".$item["description"]."</description>
 <link>".$item["link"]."</link>
</item>";
}

echo "  </channel>
 
</rss>";