problema clase abstract PDO no conecta

[lolainas]

Código PHP:

class Database extends PDO {
 
    function __construct($driver, $host, $name, $user, $pass = null, array $opt = []) {
        parent::__construct("$driver:host=$host;dbname=$name;", $user, $pass, $opt);
    }
 
}
 
$link = new Database('mysql', 'localhost', 'base_de_datos', 'root');