wwwform send an array the right way!

Hello, i have been struggling with t$$anonymous$$s part of my code for at least a week, but i can't find any information online for doing t$$anonymous$$s,

the only t$$anonymous$$ng i want to do is to send an array to a php script in my server, t$$anonymous$$s can be done very easily in a lot of ways, i successfully done t$$anonymous$$s with $_GET, (www), but my array is way to big, so i get an error. the other method is to post it via POST (wwwForm), but if i do it in .addField() it also gets an error because my array is to big.

Finally my last option is to send it via addBinaryData right? well i have a lot of headaches trying to do t$$anonymous$$s because i ALLWAYS receive the error : 400 BAD REQUEST.

My code goes like t$$anonymous$$s:

 //I use a simple method to convert my multidimensional array to byte[]

 public byte[] Encode (int[,] input)
 {
     int d0 = input.GetLength (0), d1 = input.GetLength (1);
     byte[] raw = new byte[((d0 * d1) + 2) * 4];
     Buffer.BlockCopy (BitConverter.GetBytes (d0), 0, raw, 0, 4);
     Buffer.BlockCopy (BitConverter.GetBytes (d1), 0, raw, 4, 4);
     int offset = 8;
     for (int i0 = 0; i0 < d0; i0++)
         for (int i1 = 0; i1 < d1; i1++) {
             Buffer.BlockCopy (BitConverter.GetBytes (input [i0, i1]), 0,
                 raw, offset, 4);
             offset += 4;
         }
     return raw;
 }

//Here i convert my multidimensional array to byte[]

  byte[] sendingByte = Encode(myArray);

//Create the WWWForm

     WWWForm form = new WWWForm ();

//Add the byte[] for sending ( t$$anonymous$$s is where i t$$anonymous$$ng i made the errors, please help)

     form.AddBinaryData ("file", sendingByte, "file.tmp", "application/octet-stream");
 

     WWW w = new WWW (www.myserver.com/post.php, form);

     yield return w;

     Debug.Log (w.text);

     if (w.error != null) {
         Debug.LogError ( w.error);

     } else {
         Debug.Log ("Done");
     }

 }

Ok the t$$anonymous$$ng is i only want to receive the array, convert it again to an array of int , so in my php script i can INSERT those values to a mysql database, is t$$anonymous$$s the right way to do it? is there another option? Thank you !