'IEMobile', 'Android Mobile' => 'Android', 'iPhone Mobile' => 'iPhone', 'Firefox' => 'Firefox', 'Google Chrome' => 'Chrome', 'Internet Explorer' => 'MSIE', 'Opera' => 'Opera', 'Safari' => 'Safari' ); foreach ($browserArray as $k => $v) { if (preg_match("/$v/", $agent)) { break; } else { $k = "Browser Unknown"; } } $browser = $k; // ----------------------------------------------------------------------------------------- // Get the user OS now ------------------------------------------------------------ // Create the Associative Array for the Operating Systems to sniff out $osArray = array( 'Windows 98' => '(Win98)|(Windows 98)', 'Windows 2000' => '(Windows 2000)|(Windows NT 5.0)', 'Windows ME' => 'Windows ME', 'Windows XP' => '(Windows XP)|(Windows NT 5.1)', 'Windows Vista' => 'Windows NT 6.0', 'Windows 7' => '(Windows NT 6.1)|(Windows NT 7.0)', 'Windows NT 4.0' => '(WinNT)|(Windows NT 4.0)|(WinNT4.0)|(Windows NT)', 'Linux' => '(X11)|(Linux)', 'Mac OS' => '(Mac_PowerPC)|(Macintosh)|(Mac OS)' ); foreach ($osArray as $k => $v) { if (preg_match("/$v/", $agent)) { break; } else { $k = "Unknown OS"; } } $os = $k; // At this point you can do what you wish with both the OS and browser acquired echo $agent; echo "

You are using: $browser - $os

"; var_dump($agent); ?>