How to debug curl on IIS?

Question

How to inspect CURL requests?

My PHP scripts are hosted on IIS and I want to find some debugging tool for CURL. Could you suggest something in fiddler-style?

(Or maybe there is a way to use fiddler itself, I failed to do so because if I make my CURL to tunnel through proxy 127.0.0.1 it makes CONNECT requests instead of GET)

Answer 1

wireshark is not working for HTTPS but for HTTP only.

Can you change your curl script to use HTTP?

Answer 2

Use curl -v for verbose mode.

From man curl

-v/--verbose
      Makes  the  fetching  more verbose/talkative. Mostly useful for debugging. A line starting
      with '>' means "header data" sent by curl, '<' means "header data" received by  curl  that
      is  hidden in normal cases, and a line starting with '*' means additional info provided by
      curl.

      Note that if you only want HTTP headers in the output, -i/--include might  be  the  option
      you're looking for.

      If  you think this option still doesn't give you enough details, consider using --trace or
      --trace-ascii instead.

      This option overrides previous uses of --trace-ascii or --trace.