순위 입력.. rank > PHP

// 입력시
$cu_uid = mysql_insert_id();  //입력시나 수정시 해당 uid

 //해당 uid를 제외한 순위 업데이트
$Rsql = "select *  from table_name where 조건문 order by rank";
 $Rresult = mysql_query($Rsql);
 $i = 1;
 while ($Rrow = mysql_fetch_array($Rresult)){
    if($i == $rank) $i++;   
    $RUsql = "update tabel_name set rank ='$i' where uid = '$Rrow[uid]'";                       
    $RUresult = mysql_query ($RUsql);
    $i++;
 }

 // 해당 uid 순위 update
 $RUsql2 = "update table_name set rank ='$rank' where uid = '$cu_uid'";
 $RUresult2 = mysql_query ($RUsql2);



 ######################################################################
 function OrderBy($rank, $TableName, $uid) {
            if(!$rank) $rank = 1;
            $Rquery = mysql_query("select * from $TableName where uid != '$uid' order by rank");
            $i = 1;
            while($Rrow = mysql_fetch_array($Rquery)){
                if($i == $rank) $i++;
                $RUquery = mysql_query("update $TableName set rank = '$i' where uid='$Rrow[uid]'");
                $i ++;
            }
            $RUquery = mysql_query("update $TableName set rank = '$rank' where uid='$uid'");
 }