This is my first post here. I've searched in the site, but inforutunaly no matchs. Anyway, i want to know how to use named parameters on a class. so the pdo basic form is something like.

$query = $bdd->prepare('SELECT * FROM table WHERE login = :login AND pww = :pww');
$query->execute(array('login' => $login, 'pww' => $pww));

and i want to integrate this on a class regardless of the number of parameters. Currently, i have this code

http://pastebin.com/kKgSkaKt

and for parameters, i use somethings like ( which is wrong and vulnerable to injection )

require_once 'classes/Mysql.class.php';
$mysql = new Mysql();
$sql = 'SELECT * FROM articles WHERE id = '.$_GET['id'].' LIMIT 1';
$data = $mysql->select($sql);

And Thanks.