// new method in the mother class
static function fetch_me() {
    $conn = new mysqli("host", "root",  "1657", "db");
    if ($x = $conn->query("SELECT user_info.profile_pic, user_info.bio, users.email, users.password FROM user_info INNER JOIN users ON user_info.username=users.username WHERE user_info.username='". $_SESSION['username']. "'")) {
        return $row = $x->fetch_assoc();
    }
    }

// then on the settings page

$init = new Member();
$myself = $init::fetch_me();

@$pass = $_POST['pass'];
@$email = $_POST['email'];


if (!empty($pass) && !empty($email)) {
    $init->change_email($myself['password'], $myself['email']);
}