OS Detection

["Rahul S. Johari" <rjohari@xxxxxxxxxxxx>]

Ave,

I'm working on a Guestbook for a site and I'm trying to identify Browser &
Operating System of the user and eventually I'll display the Icon matching
the Browser/OS in the entry.

I'm able to identify and use an If Conditional statement for the Browser,
but I can't seem to identify the OS.

This is what I'm using to identify the Browser:


function browser_detection( $which_test ) {

// initialize the variables
$browser = '';
$dom_browser = '';

// set to lower case to avoid errors, check to see if http_user_agent is set
$navigator_user_agent = ( isset( $_SERVER['HTTP_USER_AGENT'] ) ) ?
strtolower( $_SERVER['HTTP_USER_AGENT'] ) : '';

// run through the main browser possibilities, assign them to the main
$browser variable
if (stristr($navigator_user_agent, "opera"))
{
$browser = 'opera';
$dom_browser = true;
}

elseif (stristr($navigator_user_agent, "msie 4"))
{
$browser = 'msie4';
$dom_browser = false;
}

elseif (stristr($navigator_user_agent, "msie"))
{
$browser = 'msie'; 
$dom_browser = true;
}

elseif ((stristr($navigator_user_agent, "konqueror")) ||
(stristr($navigator_user_agent, "safari")))
{
$browser = 'safari';
$dom_browser = true;
}

elseif (stristr($navigator_user_agent, "gecko"))
{
$browser = 'mozilla';
$dom_browser = true;
}

elseif (stristr($navigator_user_agent, "mozilla/4"))
{
$browser = 'ns4';
$dom_browser = false;
}

else 
{
$dom_browser = false;
$browser = false;
}

// return the test result you want
if ( $which_test == 'browser' )
{
return $browser;
}
elseif ( $which_test == 'dom' )
{
return $dom_browser;
//  note: $dom_browser is a boolean value, true/false, so you can just test
if
// it's true or not.
}
}

$user_browser = browser_detection('browser');

echo "$user_browser";

if ( $user_browser == 'opera' )
{
echo "OPERA";
}
else {
echo "SOMETHING ELSE";
}

?>

Any suggestions on getting the OS ?

Thanks,

Rahul S. Johari
Coordinator, Internet & Administration
Informed Marketing Services Inc.
251 River Street
Troy, NY 12180

Tel: (518) 266-0909 x154
Fax: (518) 266-0909
Email: rahul@xxxxxxxxxxxxxxxxxxxx
http://www.informed-sources.com