织梦如何调用会员登录状态

{dede:php}

        require_once(DEDEMEMBER."/config.php");

        $uid = $cfg_ml->M_LoginID;

 

        if(!$uid){

            echo '<div><a class="login-button" href="/member/login.php">登录</a>

        |<a class="join-button" href="/member/index_do.php?fmdo=user&dopost=regnew">注册</a></div>

';

        }else{

        echo ' <div><a class="login-button" href="'. $cfg_memberurl.'/index.php">'.$uid.'</a>

        |<a class="join-button" href="/member/index_do.php?fmdo=login&dopost=exit">登出</a></div>

';

        

        }

{/dede:php}