query("SELECT contacts.*, clients.name as client_name FROM contacts JOIN clients ON contacts.client_id = clients.id ORDER BY contacts.name ASC");
$contacts = $stmt_contacts->fetchAll(PDO::FETCH_ASSOC);
$stmt_clients = $pdo->query("SELECT id, name FROM clients ORDER BY name ASC");
$clients = $stmt_clients->fetchAll(PDO::FETCH_ASSOC);
} catch (PDOException $e) {
echo '