title: getting error message "headers already sent" in wordpress
body: <p>This is the error message I'm getting. I built my own theme and it pulls in a bunch of files with <code>functions.php</code></p>
  
  <p><code>Warning: Cannot modify header information - headers already sent by (output started at /home3/keganqui/public_html/dev/wp-content/themes/optimus/functions.php:5) in /home3/keganqui/public_html/dev/wp-includes/pluggable.php on line 866</code></p>
  
  <p>new functions.php file, but the same error message occurs:</p>
  
  <pre><code>&lt;?php require(TEMPLATEPATH . '/inc/misc.php'); ?&gt;
  &lt;?php require(TEMPLATEPATH . '/inc/widgets.php'); ?&gt;
  &lt;?php require(TEMPLATEPATH . '/inc/homepage.php'); ?&gt;
  &lt;?php
  /* Include back-end */
  if(is_admin()){ include TEMPLATEPATH.'/panel/panel.php'; }
  
  /* Include front-end */
  if(!is_admin()){ include TEMPLATEPATH.'/panel/panel-front.php'; }
  ?&gt;
  </code></pre>