$stmt2=$pdo->query("INSERT INTO productbuying(item) SELECT EMAIL FROM itemregister WHERE EMAIL= '$EMAIL' AND emailf IN (SELECT mailid FROM productpurchase) ");
// $stmt2=$pdo->query("INSERT INTO productbuying(item) SELECT EMAIL FROM itemregister WHERE EMAIL= '$EMAIL' AND emailf IN (SELECT mailid FROM productpurchase) ");
$stmt2=$pdo->query("INSERT INTO productbuying(shopname) SELECT SHOPNAME FROM register WHERE NAME IN (select mailid FROM productpurchase) ");
//$stmt3=$pdo->query("INSERT INTO productbuying(shopname) SELECT SHOPNAME FROM register WHERE NAME IN (select mailid FROM productpurchase) ");
$stmt3=$pdo->query(" INSERT INTO productbuying(item,shopname) SELECT EMAIL,SHOPNAME from itemregister,register WHERE EMAIL='$EMAIL' AND emailf in(select mailid from productpurchase) AND NAME in(select mailid from productpurchase)");