IDNameUnitPrice"; while($row = mysqli_fetch_assoc($result)){ if($row["CategoryID"] == $id){ echo ""; echo "" . $row["ProductID"] . ""; echo "" . $row["ProductName"] . ""; echo "" . $row["Unit"] . ""; echo "" . $row["Price"] . ""; echo ""; } } echo ""; } else{ echo "Errore nella query: " . mysqli_error($conn); } ?>