Programmierstil / Der Anfänger & Der Profi

UserDao.php

<?php
class UserDao {
  public function findByLoginFromRequest(Request $request)
  {
    $sql   = 'SELECT user FROM users WHERE login=:login';
    $login = $request->request->get('login');

    $statement = $this->database->prepare($sql);
    $statement->bindValue(':login', $login);

    if ($statement->execute()) {
      return $statement->fetch(\PDO::FETCH_ASSOC);
    }

    return false;
  }
}