May the get_Browser function could tell you if it's from the .swf ?

http://us.php.net/manual/en/function.get-browser.php


H u g o H i r a m wrote:
> Hello
>
> I have a swf that runs a PHP script that generates a XML, on the PHP
> is there any way to detect if the file is being called from the swf or
> from the browser? because I want to avoid the file being run directly
> from the browser or from any other file than the swf.
>
> regards,
> Hugo.
>