[Facebook]How to pass data from php to flash?

[Erickk]

Hi, i am a beginner in PHP n Flash.
My question is how to display Facebook logged in username and profile image into Flash by using Flashvar??
Here is the php code please check whether it is correct or not?

 <?php
//include facebook api etc.
require_once("facebook/facebook.php");

//create new facebook instance
$facebook = new Facebook('xxx', 'xxx');

//prompt the user to login
$fb_user = $facebook->require_login();


//check if the user has added the app
if (!$facebook->api_client->users_isAppUser()) {
          //if not, redirect him to add it
              $facebook->redirect($facebook->get_add_url());
}
//select the profile image
      $photoData = $facebook->api_client->users_getInfo($fb_user, 'pic_big');
      $photo = $photoData[0]['pic_big'];
//select the profile name
      $tmp=$facebook->api_client->fql_query("SELECT name FROM user WHERE uid=$user");
      $nam=$tmp[0]["name"];


?>
      <!-- flash file -->
      <fb:swf swfsrc='http://xxx/app/fbtest.swf' allowscriptaccess='never' bgcolor='#ffffff' wmode='transparent'  flashvars='u_img=<?php echo urlencode($photo);?>& u_name=<?php echo urlencode($nam);?>' width='500' height='400'/>

And for the Flash part i do not know how to write the code into it.
The component i will be using is UILoader for the Image and Textfield for name.
Please kindly help me out.
Thankyou.