I am working on my Facebook app which I already mentioned before but maybe didn't publish a direct link yet: https://www.staytunedapp.com as it is still in a beta mode.
I had an issue with Facebook in the last few days\week while seeing an exception on my development server:
CurlException: 6: name lookup timed out, referer: ...
I looked for a solution and the only one I have found was changing the CURL timeout.
- Open Facebook PHP SDK path/base_facebook.php
- Go to line 134
- Change CURLOPT_CONNECTTIMEOUT=10 to CURLOPT_CONNECTTIMEOUT=30 or more (30 worked for me)