ช่วยด้วยครับ!! ใช้ json_decode ไม่ได้ แถมยังมีอย่างอื่นอีกด้วย เชิญอ่านด้านในก่อน

<?
	define('KEY','91lkjo');
	require_once('../api/server.php');
	function serialkey($key){
		global $server;
		global $decode;
		$result = $decode->q7h309u($server->getSerial($key));
		$array = $decode->etee8001($result);
	}
	//serialkey(KEY);
        echo $decode->etee8001($decode->q7h309u($server->getSerial(KEY)))."<br>";
	echo $decode->etee8001($server->getSerial(KEY))."<br>";
	echo $server->getSerial(KEY);
?>

<?
	class Server_Host{function getSerial($key){
			$ch = curl_init('http://localhost/web2/api/proxy.php?key='.$key.'');
			$result = curl_exec($ch);
			return $result;
		}
	}
	class Decode{
		function q7h309u($text){
			return base64_decode($text,true);	
		}
		function etee8001($text){
			return json_decode($text,true);	
		}
	}
	$server = new Server_Host();
	$decode = new Decode();
?>

<?php
 
if(isset($_GET['key'])) {
 
//Set our variables
$key = strtolower($_GET['key']);
 
//Connect to the Database
include("../dbconn.inc.php");
 
//Run our query
$sql = "SELECT * FROM serialkey WHERE serial='".$key."';";
$result = mysql_fetch_array(mysql_query($sql));
 
//Preapre our output
$send = array(
			array(
				'serial' => $result['serial'],
				'host' => $result['host'],
				'name' => $result['name']
				)
			);
 
$output = json_encode($send);


}
//Output the output.
echo ($output);
?>