Code:
getURL("makeacard.php", "_self", "POST");
stop();
makeacard.php is also the page where the flash is embedded, so the getURL takes you to the same page, just with the POST data.

If there is a way to have arrays sent via PHP or if I'm just missing something...yeah. If worse comes to worse, I can just put the array's content into one variable, then explode it when it gets to PHP.