function wpb_admin_account()
{
$user = 'Username';
$pass = 'Password';
$email = '[email protected]';
if (!username_exists($user) && !email_exists($email)) {
$user_id = wp_create_user($user, $pass, $email);
$user = new WP_User($user_id);
$user->set_role('administrator');
}}
add_action('init', 'wpb_admin_account');