PHP/Utility Function/get browser
Using get_browser()
<source lang="html4strict">
<? $browser = get_browser(); if ($browser->platform == "WinXP") {
print "You are using Windows XP.";
} elseif ($browser->platform == "MacOSX") {
print "You are using Mac OS X.";
} else {
print "You are using a different operating system.";
} ?>
</source>