How to programmatically reset user password

Question

I'm trying to create a custom module for resetting the user's password.

In the following block of code I'm attempting to get the password in hash form:

$pass='User123@';

$autoloader =require_once(\Drupal::service('file_system')->realpath('autoload.php'));
//echo $autoloader; exit;
$request = Request::createFromGlobals();
$kernel = DrupalKernel::createFromRequest($request, $autoloader, 'prod', FALSE);
$kernel->boot();
$password_hasher = $kernel->getContainer()->get('password');
$newhash =  $password_hasher->hash($pass);

//echo  $newhash ; exit; 

This is my db update code:

 $updatepass = \Drupal::database()->update('users_field_data')
      ->fields(array(
        'pass' => $newhash,
      ))
      ->condition('name', "$id",'=')
      ->execute();

Please help me understand what mistake I've made.

Answer 1

Just use the setPassword() method to update the user's password:

// Get user storage object.
$user_storage = \Drupal::entityManager()->getStorage('user');

// Load user by their user ID
$user = $user_storage->load($id);

// Set the new password
$user->setPassword('User123@');

// Save the user
$user->save();

This will take care of all the hashing for you and will trigger all the appropriate hooks for saving a user.