CORS PHP File Upload

Question

I'm performing a CORS file upload using PHP.

However, a few things confuse me.

I'm using FormData in Javascript. I also use encodeURIComponent . However, when I send the request, $_POST is empty . $_FILES is also empy.

However when I check this...

php://input

The submitted fields are there. The file I submitted is also there.

I am confused because php://input should not be available with enctype="multipart/form-data" .

I set the content type of the XDomainRequest to "multipart/form-data"

What is happenening?

var_dump($_POST); 
var_dump($_FILES); 
var_dump(file_get_contents(''php://input''));

Answer 1

Okay, I found my mistake.

request.setRequestHeader("Content-type", "multipart/form-data");

I'm not supposed to do that, because that will leave the form content separator blank. Because the content separator is blank, PHP can't read the post body properly.