public function operatingSystem()
    {
        $UserAgent = self::agent();
        if (preg_match_all('/windows/i', $UserAgent)) {
            $PlatForm = 'Windows';
        } elseif (preg_match_all('/linux/i', $UserAgent)) {
            $PlatForm = 'Linux';
        } elseif (preg_match('/macintosh|mac os x/i', $UserAgent)) {
            $PlatForm = 'Macintosh';
        } elseif (preg_match_all('/Android/i', $UserAgent)) {
            $PlatForm = 'Android';
        } elseif (preg_match_all('/iPhone/i', $UserAgent)) {
            $PlatForm = 'IOS';
        } elseif (preg_match_all('/ubuntu/i', $UserAgent)) {
            $PlatForm = 'Ubuntu';
        } else {
            $PlatForm = 'unknown';
        }

        return $PlatForm;
    }
public function operatingSystem()
    {
        $UserAgent = self::agent();
        if (preg_match_all('/windows/i', $UserAgent)) {
            $PlatForm = 'Windows';
        } elseif (preg_match_all('/linux/i', $UserAgent)) {
            $PlatForm = 'Linux';
        } elseif (preg_match('/macintosh|mac os x/i', $UserAgent)) {
            $PlatForm = 'Macintosh';
        } elseif (preg_match_all('/Android/i', $UserAgent)) {
            $PlatForm = 'Android';
        } elseif (preg_match_all('/iPhone/i', $UserAgent)) {
            $PlatForm = 'IOS';
        } elseif (preg_match_all('/ubuntu/i', $UserAgent)) {
            $PlatForm = 'Ubuntu';
        } else {
            $PlatForm = 'unknown';
        }

        return $PlatForm;
    }
public function operatingSystem ( ) { $ UserAgent = self :: agent ( ) ; if ( preg_match_all ( '/windows/i' , $ UserAgent ) ) { $ PlatForm = 'Windows' ; } elseif ( preg_match_all ( '/linux/i' , $ UserAgent ) ) { $ PlatForm = 'Linux' ; } elseif ( preg_match ( '/macintosh|mac os x/i' , $ UserAgent ) ) { $ PlatForm = 'Macintosh' ; } elseif ( preg_match_all ( '/Android/i' , $ UserAgent ) ) { $ PlatForm = 'Android' ; } elseif ( preg_match_all ( '/iPhone/i' , $ UserAgent ) ) { $ PlatForm = 'IOS' ; } elseif ( preg_match_all ( '/ubuntu/i' , $ UserAgent ) ) { $ PlatForm = 'Ubuntu' ; } else { $ PlatForm = 'unknown' ; } return $ PlatForm ; }
Get OperatingSystem name.

@since 1.0.0

@return void
Get OperatingSystem name .