select ข้อมูลให้แสดงออกมาตามกลุ่ม ทำยังไงคะ ?????????????

if($itemDetail["group"]==1){
$array1[] = $itemDetail["item_id"]
}else if($itemDetail["group"]==2){
$array2[] = $itemDetail["item_id"]
}if($itemDetail["group"]==3){
$array3[] = $itemDetail["item_id"]
}

$sSql_detail = "
	select *
	from 
		tbl_spt_req,
		tbl_spt_req_detail,
		tbl_spt_itemGroupType,
		tbl_spt_productTiles
	where
		tbl_spt_req.request_no = $txtRequestNo and
		tbl_spt_req.request_no = tbl_spt_req_detail.request_no and
		tbl_spt_itemGroupType.itemGroupType_no = tbl_spt_req_detail.itemGroupType_no and
		tbl_spt_req_detail.material_code = tbl_spt_productTiles.material_code and
		tbl_spt_itemGroupType.itemGroupType_no between 1 and 4
	ORDER BY tbl_spt_itemGroupType";

$sSql_detail = "select *
					from 
						tbl_spt_req,
						tbl_spt_req_detail,
						tbl_spt_itemGroupType,
						tbl_spt_productTiles
					where
						tbl_spt_req.request_no = $txtRequestNo and
						tbl_spt_req.request_no = tbl_spt_req_detail.request_no and
						tbl_spt_itemGroupType.itemGroupType_no = tbl_spt_req_detail.itemGroupType_no and
						tbl_spt_req_detail.material_code = tbl_spt_productTiles.material_code and
						tbl_spt_itemGroupType.itemGroupType_no between 1 and 4 
					ORDER BY 
						tbl_spt_req_detail.itemGroupType_no
					";

	while($itemDetail = odbc_fetch_array($result_detail)){
		$radio_id[] = "approval_".$item_id;
		$request_no = $itemDetail['request_no'];
		$amount_total = $itemDetail['amount_total'];
		$item_id = $itemDetail['item_id'];
	if($bak!=$itemDetail['itemGroupType_no']){
?>
	<tr bgcolor="#EEEEEE">
	<td colspan="<?php echo $numCols; ?>">
<?php
	echo $itemDetail['itemGroupType_name'];
?>
	</td>
	</tr>
<?php
	$bak=$itemDetail['itemGroupType_no'];	
	}

	if($groupId!=$itemDetail['itemGroup_id']){
?>
	
	<tr><td><b><?php echo $itemDetail['itemGroupType_name']; ?> ที่ : <?php echo $itemDetail['itemGroup_id']; ?></b></td></tr>
<?php
	$groupId=$itemDetail['itemGroup_id'];
	}
	
?>
	<tr>
<?php
		foreach($SptOfficer_ColsA as $key => $value){
			echo "<td>".$itemDetail[$key]."</td>";
		}
		include("includes/detail_cols_sptOfficer.php");
?>
	</tr>
<?php
		$countitem1++;
		$amount_total_sum = $amount_total_sum+$amount_total;
	}
?>
	<tr>
	<td colspan="<?php echo $numCols; ?>" bgcolor="#FFFAF0">
	ราคารวม : 
	<?php 
	echo "<b>".number_format($amount_total_sum,2)." บาท</b>";
	?>
	</td>
	</tr>
	</tbody>
	</table>