Arduino SIM908 GPRS Read response into variable from URL (php) and part two is send multipart/form-data

I have an arduino with a SIM908 board from: [login to view URL] The board is working fine and i can send information to the URL via AT+HTTPPARA however i need to know how to receive a response. Around line 146. Part two of this project, i need to send multipart form data similar to below which includes binary data (however will need to be for arduino), instead of line 119 to 140. <form action="[login to view URL]" method="post" enctype="multipart/form-data"> <input type="text" name="api" value="1234"> <input type="file" name="d" value="some large variable that is encoded, i have attached [login to view URL] which is a sample of it"> </form>