public function phpOs()
    {
        $os = PHP_OS;
        switch ($os) {
            case 'WINNT':
            case 'WINNT32':
            case 'WINNT64':
            case 'Windows':
                $c_os = 'Windows';
                break;
            case 'DragonFly':
            case 'FreeBSD':
            case 'NetBSD':
            case 'OpenBSD':
                $c_os = 'BSD';
                break;
            case 'Linux':
                $c_os = 'Linux';
                break;
            case 'SunOS':
                $c_os = 'Solaris';
                break;
            default:
                $c_os = 'Unknown';
                break;
         }

        return $c_os;
    }
public function phpOs()
    {
        $os = PHP_OS;
        switch ($os) {
            case 'WINNT':
            case 'WINNT32':
            case 'WINNT64':
            case 'Windows':
                $c_os = 'Windows';
                break;
            case 'DragonFly':
            case 'FreeBSD':
            case 'NetBSD':
            case 'OpenBSD':
                $c_os = 'BSD';
                break;
            case 'Linux':
                $c_os = 'Linux';
                break;
            case 'SunOS':
                $c_os = 'Solaris';
                break;
            default:
                $c_os = 'Unknown';
                break;
         }

        return $c_os;
    }
public function phpOs ( ) { $ os = PHP_OS ; switch ( $ os ) { case 'WINNT' : case 'WINNT32' : case 'WINNT64' : case 'Windows' : $ c_os = 'Windows' ; break ; case 'DragonFly' : case 'FreeBSD' : case 'NetBSD' : case 'OpenBSD' : $ c_os = 'BSD' ; break ; case 'Linux' : $ c_os = 'Linux' ; break ; case 'SunOS' : $ c_os = 'Solaris' ; break ; default : $ c_os = 'Unknown' ; break ; } return $ c_os ; }
Get the operating system name.

@since 2.0.3

@return string
Get the operating system name .