Структура таблицы
таблица элемент
//This is where the session will rely
$member=$_SESSION['id'];
--------------------------------------------
| id | member_first | grade_level | class |
---------------------------------------------
| 1 | Pat | 1 | Maroon |
таблица tblstudent
-------------------------------------
| id | fname | grade_level | class |
-------------------------------------
| 1 | Wew | 1 | Red |
-------------------------------------
| 1 | Wew | 1 | Maroon | //This row is the only thing that needs to be fetched because it corresponds with the member grade_level and class in a session
Это то, что я пробовал
<?php
include('../dist/includes/dbcon.php');
$member=$_SESSION['id'];
$query=mysqli_query($con,"SELECT * FROM tblstudent LEFT JOIN member ON tblstudent.class = member.class AND tblstudent.grade_level = member.grade_level WHERE member.id = '".$_SESSION['id']."'")or die(mysqli_error());
while($row=mysqli_fetch_array($query)){
$id=$row['id'];
$fname=$row['fname'];
?>
<td><?php echo $fname;?></td>
<?php }?>
Пожалуйста, помогите мне с моим запросом.Спасибо большое