user_cancel

user_cancel($edit, $uid, $method)

function user_cancel($edit, $uid, $method) {
  $account = User::load($uid);

  if (!$account) {
    drupal_set_message(t('The user account %id does not exist.', array('%id' => $uid)), 'error');
    \Drupal::logger('user')->error('Attempted to cancel non-existing user account: %id.', array('%id' => $uid));
    return;
  }

  // Initialize batch (to set title).
  $batch = array(
    'title' => t('Cancelling account'),
    'operations' => array(),
  );
  batch_set($batch);

  // When the 'user_cancel_delete' method is used, user_delete() is called,
  // which invokes hook_ENTITY_TYPE_predelete() and hook_ENTITY_TYPE_delete()
  // for the user entity. Modules should use those hooks to respond to the
  // account deletion.
  if ($method != 'user_cancel_delete') {
    // Allow modules to add further sets to this batch.
    \Drupal::moduleHandler()->invokeAll('user_cancel', array($edit, $account, $method));
  }

  // Finish the batch and actually cancel the account.
  $batch = array(
    'title' => t('Cancelling user account'),
    'operations' => array(
      array('_user_cancel', array($edit, $account, $method)),
    ),
  );

  // After cancelling account, ensure that user is logged out.
  if ($account->id() == \Drupal::currentUser()->id()) {
    // Batch API stores data in the session, so use the finished operation to
    // manipulate the current user's session id.
    $batch['finished'] = '_user_cancel_session_regenerate';
  }

  batch_set($batch);

  // Batch processing is either handled via Form API or has to be invoked
  // manually.
}