Having trouble getting my form to UPDATE records in my database even after searching the web and viewing the other answers on stack-overflow.

Here is my current NON functioning code:

```
if ((isset($_POST["MM_update"])) && ($_POST["MM_update"] == "form1")) {

session_start();
$tablename = $_SESSION['MM_Username'];
$amount=$_POST['amount'];
$UpdateQuery = "UPDATE '" . $tablename . "' SET stock = '" . $amount . "' WHERE status = 1";
mysql_query($UpdateQuery);

```

}

The table i want to update has the same name as the SESSION variable MM\_Username. I have a form with a textbox named amount and a Submit button that when clicked, should trigger the above code. If you need to know anything else let me know. Thanks in advance!