需要帮助json_encode（$array）问题-helpneededwithjson_encode($array)problemplease

i have this code:

我有这个代码:

then i have my getMessageDetails.php:

然后我有我的getMessageDetails.php:

getUnopenedMessagesCount($_SESSION['user_id']) + 1;
$last_unopened_message_row = $obj_clean->getLastUnopenedMessage($_SESSION['user_id'],$lastNewMessageCnt); 

echo json_encode($last_unopened_message_row);

?>

and my html:

和我的HTML:

echo "";
echo ''.$r['subject'].'';
echo ''.$uniqueCode1.''.$uniqueCode2.''.$uniqueCode3.'';
echo "";

how come when i alert(json) i get the values im supposed to get which is the last message:

我怎么警告(json)我得到的值我应该得到哪个是最后一条消息:

[{"subject":"Freechat ha ha","id":"15","created_at":"2011-08-29 11:16:45","unique_code":"LUCINEM000RC","opened_once":"0"}]

BUT as soon as i code this:

但是只要我编码这个:

alert($("#subject").html(json.subject));  
alert($("#message_id").html(json.id));
alert($("#unique_code1").html(json.unique_code));

i get the first message's details??? which is not what i want where am i going wrong please?? thank you

我得到第一条消息的详细信息???这不是我想要的地方我想去哪里?谢谢

2 个解决方案

alert(json[0].subject);
alert('
'+json[0].id);
alert('
'+json[0].created_at);
alert('
'+json[0].unique_code);
alert('
'+json[0].opened_once);

function refresh()
    {      
        $.get('getMessageDetails.php', function (json) {               
        },"json"); // <---here
    }

alert(json[0].subject);