Something in flash, from a site?

Hey, How would you make it so theres a text file, on flash that has the variable name of
_root.text_box

How would you make it so that you can insert the text, from a file called “news.php” on your site, that had no coding on the page, just writing (Such as today nothing happened)

So maybe something like…

_root.text_box.text = “(The code here to import the .php file into here)”;

Thanks. ;]