curl function and multipart/form-data issue

Question

does curl function need any special option to post multipart/form-data ?

Answer 1

Use curl_setopt() to set CURLOPT_POSTFIELDS to an associative array.

Answer 2

Use curl's -F (or --form) and --form-string options to POST multipart/form-data.

That is, assuming you are talking about the curl program, not the libcurl library. This wasn't clear from your question.