title: Secure mysql configuration file in vps having multiple developers granted root users
body: <p>Referencing this question: <a href="https://stackoverflow.com/q/97984/6826238">How to secure database passwords in PHP?</a></p>
  
  <p>In Dedicated or VPS server, How to secure mysql configuration file that contains DB username &amp; password. Which can be used in php applications.</p>
  
  <p>Having multiple root users on that server.</p>
  
  <p>How to best secure config.php from local users and hackers?</p>