Receiving multiple variables from PHP into multiple dynamic text boxes in Flash AS3

I have a Flash file that gets a user ID from the URL, this works, and sends it to a PHP file to retrieve data. I am trying to retrieve two variables and put each of them in their own dynamic text boxes. What ends up happening is everything is placed in the first dynamic text box and it looks like: ThisFirmsNamephonenumber=9384829283         It's almost like the flash file is not recognizing the & to separate the name/value pairs. I have also tried the PHP file with no function and simpler echo using the & but that did not work either. Thanks for your help!

AS3:
 
var request:URLRequest = new URLRequest ("http://localhost/nsert.php");
request.method = URLRequestMethod.POST;
				
var variables:URLVariables = new URLVariables();
				
variables.idtag = this.loaderInfo.parameters.id;			
variables.phonenumber = "";
variables.firmname = "";
request.data = variables;
				
var loader:URLLoader = new URLLoader (request);
 
loader.dataFormat = URLLoaderDataFormat.VARIABLES;
loader.load(request);
 
loader.addEventListener(Event.COMPLETE, onComplete);
 
function onComplete (event:Event):void
{
    var variables:URLVariables = new URLVariables( event.target.data );
	phone.text = variables.phonenumber;
    firmname.text = variables.firmname;
}
 
 
 
 
 
 
PHP:
 
<?php
   //Capture data from $_POST array
   $id=$_POST['idtag'];
   //Connection to database
   $connect = mysql_connect("****","****","******");
   mysql_select_db ("databasename", $connect);
   //Perform the query
   $result = mysql_query("SELECT firmname, phone FROM tablename WHERE selector=$id");
   $row = mysql_fetch_row($result);
   $firmname = $row[0];
   $phonenumber = $row[1];
   
$numVariables = 0;
 
function writeVariable( $name, $value )
{
    if( $numVariables > 0 )
    {
        echo "&";
    }
 
    echo $name . "=" . urlencode($value);
 
    $numVariables ++;
}
 
writeVariable( "firmname", $firmname );
writeVariable( "phonenumber", $phonenumber );
 
mysql_close($connect);
?>

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