I'm trying to working with the Tripletex API. Also see our topic : http://www.daniweb.com/web-development/php/threads/444996/tripletex-with-php
When i tried log in, It's ok. and response an array. But the problem is : in the header of this response, i can not see any cookie, session about my log in. So i can not do anything more.

Did you have any exp about it ? Hope to see your advice.

Best regards,

finally i found the problem. You neeed to use json-rpc via Curl to set cookie for it. Can not use fopen :)