As per stated in the processFields API info: "The XML file with the parameters of processing is transmitted in the request body".
In PHP, the file to be processed is transmitted in the request body as follows:
$post_array = array( "my_file"=>"@".$filePath, ); curl_setopt($curlHandle, CURLOPT_POSTFIELDS, $post_array);
How should I include the processing parameters XML file into the request body? What should the file be named in the post_array?