สอบถามเรื่องการ Update ข้อมูลและมีการเพิ่มข้อมูลในหน้าแก้ไข

if(isset($_POST['submit']))
		{
foreach($_POST['take_item'] as $key => $value){
				$take_item = $value;
				$list = $_POST['list'][$key];
				$number = $_POST['number'][$key];
				$unit = $_POST['unit'][$key];
				$date = $_POST['date'][$key];
				$note = $_POST['note'][$key];
				for ($i=0; $i < sizeof($list); $i++) { 
					if(!empty($list[$i]))
      			{
              if(!empty($take_item)){
				$result = query("UPDATE `takeout_item` SET `take_itemname` = '$list', `take_item_number` = '$number', `take_item_unit` = '$unit', `take_item_date` = '$date', 
				`take_note` = '$note' WHERE `take_item` = '$take_item'");
			}else{
				$result = query("INSERT INTO `takeout_item` SET `take_itemname` = '$list', `take_item_number` = '$number', `take_item_unit` = '$unit', `take_item_date` = '$date', 
				`take_note` = '$note', `takeinout_id` = '$takeid'");
			}
			}
		}
	}
}