osCommerce: Session autostart is enabled Fix

If you are running osCommerce on the web server where PHP’s session.auto_start is enabled, you will receive the following error message:

Warning: session.auto_start is enabled – please disable this php feature in php.ini and restart the web server.

To get rid of a warning, follow these simple instructions:

Open:
catalog/includes/application_top.php

Find:

define('WARN_SESSION_AUTO_START','true');

and replace with:

define('WARN_SESSION_AUTO_START','false');

Save and close this file and it’s done!