Im using the simple sample posted here: http://developer.constantcontact.com/samples/putSubscriber and im getting the curl HTTP_code 0 . Im not sure why its giving me that as I have used all the posted code. Let me know what you guys think. Thanks.
Unfortunately we are experiencing an issue with our API's, which would prevent any requests from working at this time. We are working to resolve this as quickly as possible and will keep our status page at http://status.constantcontact.com up to date. On a side note, we do have other PHP samples created that are available on our Code Samples page.
I apologize for any inconvenience that this has caused.