Two timensional array mysql_fetch_what?

[Gal Koren]

$query = 'SELECT * FROM bla;';
$result = $db->query($query);

I want to be able to address to every data cell in the table by the name of the column and number by order. For example:
$x = $row['column']['0'];
$x is now set to something.

do I need to use
$row = mysqli_fetch_assoc($result)

or something else?

thanks a lot and sorry for the multiple threads.