syncing mobile app with web - Flash Builder for PHP

Im starting experiment with Flash Builder for PHP mobile p开发者_如何学Pythonrojects and I found it facinating. I could connect the app to a local database, but I was wondering how can I update the data of the mobile app from a website?. If someone can give me a clue I will really apreciated it. Thanks!!!

Create an API in php. I would create a JSON api:

$arr=array($all, $the, $data, $to, $send);
echo json_encode((object)$arr);