让PHP显示Facebook的粉丝数量方法

<span style="font-size:12px;"><?php 
$page_id = "YOUR PAGE-ID"; 
$xml = @simplexml_load_file("http://api.facebook.com/restserver.php?method=facebook.fql.query&query=Select%20fan_count%20FROM%20page%20Where%20page_id=".$page_id."") or die ("a lot"); 
$fans = $xml->page->fan_count; 
echo $fans; 
?></span>