title: "Unknown" PHP error - what is that supposed to mean?
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/8028957/how-to-fix-headers-already-sent-error-in-php">How to fix “Headers already sent” error in PHP</a></p>
  </blockquote>
  
  
  
  <blockquote>
    <p>[Mon Jan 10 21:01:26 2011] [error] [client xx.xx.xxx.xx] PHP Warning: Cannot modify header information - headers already sent in Unknown on line 0, referer: www.example.com/some.php</p>
  </blockquote>
  
  <p>Why PHP is not able to locate where the headers were sent from?</p>