จะส่ง ค่าarray จาก php ให้ flash คือผมดึงข้อมูลจาก database แล้วอยากจะส่งค่าที่ได้จากการ numrows

var json = new JSON();
var _lv:LoadVars = new LoadVars();
var get_lv:LoadVars = new LoadVars();
get_lv.onLoad = function(s:Boolean){
	if (s){
		trace("ok");
		var obj:Object=json.parse(get_lv.json);
		for(var i:Number=0;i<obj.length;i++){
				trace(obj[i]['title']);
		}
	}else{
		trace("not ok");
	}
}
_lv.sendAndLoad("http://localhost/var.php",get_lv,'POST');

<?php
//ต่อ database
$r = mysql_query('SELECT * FROM tb1');
$rows = array();
while($row=mysql_fetch_assoc()){
 $rows[] = $row;
}
echo json_encode($rows);
?>

<?php
mysql_connect('localhost','root','12345');
mysql_select_db('test');
$r = mysql_query('SELECT title FROM tb1');
$rows = array();
while($row=mysql_fetch_assoc($r)){
 $rows[] = $row;
}
echo json_encode($rows);
?>

<?php
mysql_connect('localhost','root','12345');
mysql_select_db('test');
$r = mysql_query('SELECT title FROM tb1');
$rows = array();
while($row=mysql_fetch_assoc($r)){
 $rows[] = $row;
}
echo http_build_query(array('json'=>json_encode($rows)));
?>