[HELP] Unable to submit phpld sites in php-curl?

Hi,
I am trying to write a code in php to submit my links automaticly to phpld sites.
When i try to submit /submit.php i don't receive any notification. Normally it should print "Link submitted..." etc.

I think there is a session problem, Any idea? How can i solve this issue?
Thanks

Can you post the code in question? The cURL request is probably failing, but the error message are being suppressed.