保存网站快捷方式到桌面的php代码，转的一个朋友的了，加了点判断

补充一段保存网站快捷页面到桌面的php代码

<?php
$Shortcut = "[InternetShortcut]
URL=http://www.xxx.com
IDList=
[{000214A0-0000-0000-C000-000000000046}]
Prop3=19,2
";
$ua = $_SERVER["HTTP_USER_AGENT"];
$filename = "网站名称.url";
$encoded_filename = urlencode($filename);
$encoded_filename = str_replace("+", "%20", $encoded_filename);
header('Content-Type: application/octet-stream');
if(preg_match("/MSIE/", $ua)){
    header('Content-Disposition: attachment; filename="'.$encoded_filename.'"');
}else if(preg_match("/Firefox/", $ua)){
    header('Content-Disposition: attachment; filename*="utf8\'\''.$filename.'"');
}else{
    header('Content-Disposition: attachment; filename="'.$filename.'"');
}
echo $Shortcut;
?>