PHP, curl, and raw headers

Question

When using the PHP curl functions, is there anyway to see the exact raw headers that curl is sending to the server?

Answer 1

AFAIK, the PHP/CURL binding still lacks proper support for CURLOPT_DEBUGFUNCTION which is a callback from libcurl that can provide all those details.

That's the primary reason why I recommend people to work out HTTP scripting things with the curl command line tool and its --trace-ascii option FIRST, then translate that into a PHP function.