跨域上传，从一个域到另一个域上载文件

Question

how to allow one domain to access another domain for uploading files from domain1 on domain2? I have a page on domain1 from where users upload images but I want that the images get uploaded on a folder on domain2.com like domain2.com/uploads.

How do to allow domain1 to access domain2?

Answer 1

http://domain-A.org/send.php :

<form action="http://domain-B.org/upload.php" method="post" enctype="multipart/form-data">
  <!-- .. -->
</form>

http://domain-B.org/upload.php :

<?php
print_r($_FILES);