On Fri, Jul 10, 2009 at 12:49 PM, Michael A. Peters <mpeters@xxxxxxx> wrote: > James Colannino wrote: > >> > White space can cause this - make sure your code has <?php as the very top > and ?> at the very bottom, or the white space may trigger the web server to > send a header and the white space as data before the cookie for > session_start() is sent. Well, at the end of the file dont put a ?> on your php files especially which files you are gonna include at others. It would save you some dreadfull buggy times. Its also practiced in the framework programming.