title: best practices in naming session variables
body: <p>I was used to naming my session variables the "normal" way, kinda like when I want to keep track of user details, I name them:</p>
  
  <ul>
  <li><code>$_SESSION['username']</code></li>
  <li><code>$_SESSION['email']</code> </li>
  <li><code>$_SESSION['id']</code></li>
  </ul>
  
  <p>I am worried that they may be in conflict with other session data when I am browsing sites in the same browser, or will there not be any conflict at all(once I tried to simultaneously run two of my projects with the same session variables, residing in the same server, and obviously, things got real messy).</p>