PHP :: How To Load SWF And Some Extra Data In Same Request

I'm loading a Flex 4.5 module (it's a SWF file) using a PHP code like this:
$module = 'modules/'.$_GET['module'].'.swf';
if(!file_exists($module)) {
$module = 'error.swf';
} $size = filesize($module);
$contents = file_get_contents($module);
header('Content-Type: application/x-shockwave-flash');
header('Accept-Ranges: bytes');
header('Content-Length: '.$size);
echo $contents;
And it works very well.

Now I want to get some extra data to load and populate the module with that data in just one request handler, something like:
private function requestHandler(response:???):void {
var data:Array = response as Array;
mySparkModuleLoader.load("", data[0] as ByteArray);
myController.load(data[1]);
}

I was trying to do it with AMFPHP but the ByteArray seems to be broken or something because it doesn't show up, but the rest of the data is fine:
return array(
'hello world!',
new Amfphp_Core_Amf_Types_ByteArray(file_get_contents($module))
);
Maybe creating a multipart response like [URL] and handling it?