[JamesAB]

Thank you very much

That change appears to make it work as intended. My working code is now:

global $vbulletin;
if ($nextitem = $vbulletin->db->query_first("SELECT * FROM " . TABLE_PREFIX . "cron WHERE cronid = 31"))
{
    ignore_user_abort(1);
    @set_time_limit(0);

    require_once(DIR . '/includes/functions_cron.php');
    include_once(DIR . '/' . $nextitem['filename']);
}

Is there any way to suppress the output from my scheduled task when it's called from the attachdata_postsave hook, but allow it when the scheduled task is manually run from the AdminCP?

For example, I'm using echo commands in the scheduled task that are nice to show the progress in the AdminCP, but I'd like to hide them from the Manage Attachments window when attachdata_postsave is called from there.

Currently all the echo outup from the scheduled task shows up at the top of the Manage Attachments window after the attachdata_postsave hook is called and processes the scheduled task.

Thanks again,
James