Example code error in Chapter 7 > Generic Functions

[dtliao0303]

It's just an example code does not affect the code for the website, but just saying...

What's showing in the book:

// Delete the book with the ISBN 978-3-16-148410-0
delete($pdo, 'book', '978-3-16-148410-0', 'isbn');

Believe the isbn# and 'isbn' should change place, like following:

// Delete the book with the ISBN 978-3-16-148410-0
delete($pdo, 'book', 'isbn', '978-3-16-148410-0');

This is the function code:

function delete($pdo, $table, $primaryKey, $id ) {
    $parameters = [':id' => $id];
    query($pdo, 'DELETE FROM `' . $table . '` 
    WHERE `' . $primaryKey . '` = :id', $parameters);
}