dedecms联动菜单通过evalue获取三级所有的ename

//参数$evalue联动的值$egroup联动的别名 。

//获得联动全部内容：

function ed_get_enum($evalue,$egroup){
    global $db;
    //获取小数点后的数值
    $fr=explode(".",$evalue);
    //判断联动等级
    //判断是否整除500(是则为一级联动)
    if($evalue%500=='0')
    {
        $rs_top=$db->getOne("select * from dede_sys_enum where evalue='$evalue' and egroup='$egroup'");
        $ename_top = $rs_top[ename];
    }
    //判断能否整除500 并且没有小数点(是则为二级联动)
    if($evalue%500!='0' && $fr[1]=='')
    {
        $rs_son=$db->getOne("select * from dede_sys_enum where evalue='$evalue' and egroup='$egroup'");
        $ename_son = $rs_son[ename];
      
        //换算一级联动
        $evalue_top = $evalue-($evalue%500);
        $rs_top=$db->getOne("select * from dede_sys_enum where evalue='$evalue_top' and egroup='$egroup'");
        $ename_top = $rs_top[ename];
    }
    //判断小数点后是否有值(有值则为三级联动)
    if($fr[1]!='')
    {
        $rs_sec=$db->getOne("select * from dede_sys_enum where evalue='$evalue' and egroup='$egroup'");
        $ename_sec = $rs_sec[ename];
        //换算二级联动
        //获取小数点前的数值
        $evalue_son = $fr[0];
        $rs_son=$db->getOne("select * from dede_sys_enum where evalue='$evalue_son' and egroup='$egroup'");
        $ename_son = $rs_son[ename];
        //换算一级联动
        $evalue_top =$evalue_son-($evalue_son%500);
        $rs_top=$db->getOne("select * from dede_sys_enum where evalue='$evalue_top' and egroup='$egroup'");
        $ename_top = $rs_top[ename];
    }
    //返回联动
    return $ename_top."  ".$ename_son."  ".$ename_sec;  
}