simlpexml ilgili ufak bir soru

$xml = simplexml_load_file('rss.xml');

foreach($xml->channel->item as $item)
{
    echo $item->title.' - '.$item->description.' - '.$item->image.'<br>';
 }

$xml = simplexml_load_file('rss.xml');
$say = 1;
foreach($xml->channel->item as $item)
{
    if($say<=5){
         echo $item->title.' - '.$item->description.' - '.$item->image.'<br>';
         $say++;
    }else{
         //5e kadardı
    }  
}