dede调用当前顶级栏目名称、ID、url方法

//获取顶级栏目名
function GetTopTypename($id)
{
    global $dsql;
    $row = $dsql->GetOne("SELECT typename,topid FROM wmd_arctype WHERE id= $id");
    if ($row['topid'] == '0')
    {
        return $row['typename'];
    }
    else
    {
        $row1 = $dsql->GetOne("SELECT typename FROM wmd_arctype WHERE id= $row[topid]");
        return $row1['typename'];
    }
}

//获取顶级栏目url 
function GetTopTypeurl($id)
{
    global $dsql;
    $row = $dsql->GetOne("SELECT sitepath,topid FROM wmd_arctype WHERE id= $id");
    if ($row['topid'] == '0')
    {
        return $row['sitepath'];
    }
    else
    {
        $row1 = $dsql->GetOne("SELECT sitepath FROM wmd_arctype WHERE id= $row[topid]");
        return $row1['sitepath'];
    }
}

function GetTopTypeurl($id)
{
    global $dsql;
    $row = $dsql->GetOne("SELECT siteurl,topid FROM wmd_arctype WHERE id= $id");
    if ($row['topid'] == '0')
    {
        return $row['siteurl'];
    }
    else
    {
        $row1 = $dsql->GetOne("SELECT siteurl FROM wmd_arctype WHERE id= $row[topid]");
        return $row1['siteurl'];
    }
}

{wmd:type}[feild:topid/]{/wmd:type}

$row = $dsql->GetOne("Select id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath
From `wmd_arctype` where id='$typeid'");

$row = $dsql->GetOne("Select id,topid,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath
From `wmd_arctype` where id='$typeid'");

if( $row['topid']==0){$row['topid']=$row['id'];}