Easiest Way OS Detection With PHP?

Question

I\'m trying to figure out the visitor\'s OS is either a Windows, Mac or Linux using PHP(I don\'t need the version, distro info.. etc). There\'s several methods out there how

Answer 1

use the Net_UserAgent package

docu is here: http://pear.php.net/package/Net_UserAgent_Detect/docs/latest/Net_UserAgent/Net_UserAgent_Detect.html#methodgetOSString

get the php file here: package/Net_UserAgent_Detect/docs/latest/__filesource/fsource_Net_UserAgent__Net_UserAgent_Detect-2.5.1Detect.php.html