Question

$data = $dbh->prepare('SELECT workloadformula,coursecode FROM coursedetails WHERE coursecode = ' . $dbh->quote($coursecode) . ' ; select concat(firstname," ",lastname) as name from lecturerdetails where concat(firstname," ",lastname) = ' . $dbh->quote($name) . '');


$data->execute();
do {
    $result = $data->fetchAll();
    $final  = var_dump($result);
    echo "$final";
} while
(
    $dbh->nextRowset()
);

Answer 1

Assuming $dbh is an instance of the PDO class:

1. There’s no such method as PDO::nextRowset(), you probably meant $data->nextRowset().
2. var_dump() doesn’t return anything, so assigning the result to $final is meaningless.