帝国CMS判断会员是否登录及登录后才能看到内容的方法

<?php
require("class/connect.php");
include("class/db_sql.php");
include("class/config.php");
include("data/dbcache/class.php");
$link=db_connect();
$empire=new mysqlquery();
$classid=intval($_GET['classid']);
$id=intval($_GET['id']);
$muserid=(int)getcvar('mluserid');//用户id
$musername=RepPostVar(getcvar('mlusername'));//用户名
$mgroupid=(int)getcvar('mlgroupid');//会员组id
if($classid&&$id&&$class_r[$classid][tbname]&&$muserid)
{
$r=$empire->fetch1("select id,phone from {$dbtbpre}ecms_".$class_r[$classid][tbname]." where id='$id' and classid='$classid' limit 1");
if($r[id])
{
?>
document.write('<li title="<?=$r[phone]?>">手机：<?=$r[phone]?></li>');
<?php
}
}
else
{
?>
document.write('<li class="businessCard-embed-content-nologin"><span>手机：</span><span class="businessCard-embed-content-nologinIcon"></span><a id="businessCard-embed-login" href="#">登录后可见</a></li>');
<?php
}
db_close();
$empire=null;
?>

<script src="[!--news.url--]e/show.php?classid=[!--classid--]&id=[!--id--]"></script>