interface DatabaseInteface
{
    public function Connection();
}
    /* Open a Connection to PDO */
class PDOConnectionDatabase implements DatabaseInteface {
    /* Properties */
    private $conn;
    private $dsn = 'mysql:dbname=panel;host=localhost';
    private $user = 'root';
    private $password = '';
    public function Connection()
    {
        try {
            $this->conn = new PDO($this->dsn, $this->user, $this->password);
            // set the PDO error mode to exception
            $this->conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
            echo "PDO Connected successfully";
            } catch(PDOException $e) {
            echo "PDO Connection failed: " . $e->getMessage();
        }
    }
}
    /* Open a Connection to MySQL */
class mysqlConnectionDatabase implements DatabaseInteface {
    /* Properties */
    private $conn;
    private $serve = 'localhost';
    private $user = 'root';
    private $password = '';
    public function Connection()
    {
        $this->conn = mysqli_connect($this->serve, $this->user, $this->password);
        // Check connection
        if (!$this->conn) {
        die("mysqli Connection failed: " . mysqli_connect_error());
        }
        echo "mysqli Connected successfully";
            }
}
class Users
{
    protected DatabaseInteface $DatabaseInteface;
    public function __construct(DatabaseInteface $DatabaseInteface)
    {
        $this->DatabaseInteface = $DatabaseInteface;
    }
    public function UserConectToDatabase()
    {
        $this->DatabaseInteface->Connection();
    }
}
    /* MySQLi Installation */
$mysqlconnection = new mysqlConnectionDatabase();
    /* PDO Installation */
$PDOconnection = new PDOConnectionDatabase();
$newUser = new Users($PDOconnection);
$newUser->UserConectToDatabase();