上記のコードに問題がある場合はお知らせください。

次のコードの問題は何ですか

PHP コード

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<?PHP

$id=$_GET['number'];

include("conn.php");

$Date = date("YmdHis");
$Filename = $Date.".csv";
$Table = isset($_GET['tid'])?$_GET['tid']:''; 
header("Content-type:application/vnd.ms-excel");
header("Content-Disposition:filename=".$Filename);
echo "SKU,product-name,sum(quantity),\r\n";
 $Sql = "select *,sum(`quantity-purchased`) from sale_orders WHERE `number`=$id group by `jj_sku`";
 $Result = mysql_query($Sql);
 
 while($rs = mysql_fetch_array($Result) ){
 
  $j_sku=$rs['jj_sku'];
   $Sqlpr = "SELECT `product-name` FROM `product_co` WHERE `jj_sku`=$j_sku";
 $Resulta = mysql_query($Sqlpr,$conn);
 $resultaa= mysql_fetch_row($Resulta);
$pro-nm=$resultaa[0];

 echo $rs['jj_sku'].",".$pro-nm.",". $rs['sum(`quantity-purchased`)']." \r\n ";
    
 }

?>

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