title: PHP - set session variable to expire after 30 minutes
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/520237/how-do-i-expire-a-php-session-after-30-minutes">How do I expire a PHP session after 30 minutes?</a>  </p>
  </blockquote>
  
  
  
  <p>I have a session </p>
  
  <pre><code>$_SESSION['uid'];
  </code></pre>
  
  <p>Is there a simple script to end this session after 30 minutes?  Any help is greatly appreciated.</p>