How to create magento 2 admin user from the root external script?

Please create one file named "user.php" in your root of magento and copy paste below code in your file

<?php
use Magento\Framework\App\Bootstrap;

require __DIR__ . '/app/bootstrap.php';

ini_set('display_errors', 1); ini_set('display_startup_errors', 1); error_reporting(E_ALL);

$params = $_SERVER;
 
$bootstrap = Bootstrap::create(BP, $params);
 
$objectManager = $bootstrap->getObjectManager();
$userFactory = $objectManager->get('\Magento\User\Model\UserFactory');

try{
    $adminInfo = [
        'username'  => 'magento',
        'firstname' => 'magento',
        'lastname'    => 'magento',
        'email'     => '[email protected]',
        'password'  =>'magento@123',       
        'interface_locale' => 'en_US',
        'is_active' => 1
    ];
    $userModel = $userFactory->create();
    $userModel->setData($adminInfo);
    $userModel->setRoleId(1);
    $userModel->save(); 
    echo "User is sucessfully created!";
} catch (\Exception $ex) {
    echo $ex->getMessage();
    exit;
}

Run this script in browser or you can also run this file in CLI. After creation of user please go to admin panel and try to login with the below credentials as per mentioned in script.

Username :- magento
Password :- magento@123