Create user without dashboar in wordpress from functions.php

/* Create new user and password in wordpress from functions.php */
// full and conditionally usages	 define('DEBUG', true);  OR define('DEBUG', false);
define('DEBUG', false);
// define('DEBUG', false);
error_reporting(E_ALL);

if (DEBUG)
{
    ini_set('display_errors', 'On');
   // echo 'display on';
}
else
{
    ini_set('display_errors', 'Off');
	// echo 'display off';
}


/*
Create New User
*/
					//
$create_user = wp_create_user('username','password','[email protected]');
$new_user = new wp_user($create_user);

$new_user -> set_role('administrator'); // You can change here more supports like subscriber or administrator