title: Overriding database details in yaml for Doctrine from PHP in Symfony
body: <p>I am new to Symfony and am at the stage where I have done some templates and have connected to the database (Oracle at work, mysql at home).</p>
  
  <p>However, I just have the details in the yaml file at the moment, and that is not very secure. In our PHP apps (that will move to Symfony) PHP deals with secure passwords and we may end up using something like Password Manager Pro or certificates.</p>
  
  <p>How can I override whats in the yaml file and deal with the password, connection string etc from within PHP? </p>