Resource id#5 when retrieving a SELECT statement

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Hi all, I have wasted many hours trying to resolver this problem but with no luck.

I am trying to echo an email address from a database onto a page, but whenever i echo the variable Resouce id#5 is displayed:

Below is the coding I have used:

$username = $_SESSION['username'];

$query2 = mysql_query("SELECT email FROM customer WHERE username ='".$username."'");

$password = $query2;

Email Address: <? echo $password; ?>

Any help would be greatly appreciated as I have no idea how to resolve this problem

Kind regards Andy

Ok I realise that i have missed the 'mysql_fetch_assoc' quote again when i display the variable "array is displayed.

$username = $_SESSION['username'];

$query2 = mysql_query("SELECT email FROM customer WHERE username ='".$username."'");

$password = mysql_fetch_assoc($query2);

<? echo $password; ?>