(PHP 5 >= 5.5.0, PHP 7) Set MIME type public
(PHP 5 >= 5.5.0, PHP 7) Set file name for POST
(PHP 5 >= 5.5.0, PHP 7) Get MIME type public
(PHP 5 >= 5.5.0, PHP 7) Unserialization handler
(PHP 5 >= 5.5.0, PHP 7) Get file name for POST
(PHP 5 >= 5.5.0, PHP 7) Create a CURLFile object
(PHP 5 >= 5.5.0, PHP 7) Get file name public