codice:
<?
$browser=htmlspecialchars($_SERVER["HTTP_USER_AGENT"]);
$browser = str_replace(array("\r\n", "\r", "\n"), "", $browser);
$browser = str_replace("|","", $browser);

$dispositivo="cell";
$browser=htmlspecialchars($_SERVER["HTTP_USER_AGENT"]);
$browser = str_replace(array("\r\n", "\r", "\n"), "", $browser);
$browser = str_replace("|","", $browser);
$keybro="";
$keybro=stristr($browser,"Windows NT");
if(!empty($keybro))
{$dispositivo="PC";}

if($dispositivo=="cell")
{
$keybro="";
$keybro=stristr($browser,"Macintosh");
if(!empty($keybro))
{$dispositivo="PC";}}


if($dispositivo=="cell")
{
$keybro="";
$keybro=stristr($browser,"Linux x86");
if(!empty($keybro))
{$dispositivo="PC";}}
?>
cosi quindi?