title: Using Codeigniter, how do I hide Paypal credentials from other developers?
body: <p>Couldn't find a good answer to this on here.</p>
  
  <p>So basically I am using bitbucket.org as my git system. My application uses paypal credentials such as api username, password, signature. What would be the best and most secure way to hide these credentials from other developers who will check out and work on my code?</p>
  
  <p>I use LAMP stack. CodeIgniter framework.</p>
  
  <p>I was thinking of having a serialized file that I don't add to git, put it also on live server, then unserialize it and pull the credentials from it.</p>