Jquery验证插件.没有使用远程规则删除错误元素(所有元素都可以在没有远程规则的情况下工作)

检查此提琴:http://jsfiddle.net/8b32e/

那里一切正常。它验证字段。检查是否为数字，检查是否为空白。如果出现无效的错误标签，如果有效则消失。

$("input").each(function () {
    $(this).rules("add", {
        required: true,
        digits: true,
        messages: {
            required: 'It is required',
            digits: 'Only digits can be there'
        }
    });
});

如果我将远程规则添加到规则列表，出现错误标签，但如果字段有效，只有类message和error消失，但标签仍然显示(但必须删除)。检查此提琴:http://jsfiddle.net/2LRv7/7/

$("input").each(function () {
    var fieldName = $(this).attr('name');
    $(this).rules("add", {
        required: true,
        digits: true,
        remote: {
            url: "/inc/json.php?action=get_last_counter_value",
            type: "post",
            data: {
                id: fieldName
            }
        },
        messages: {
            required: 'It is required',
            digits: 'Only digits can be there',
            remote: 'Fix this please.'
        }
    });
});

这是什么?

:
PHP脚本从远程url:

    $DBH = connectToDatabase();
    $user_id = $_SESSION['OplataUser_ID'];
    $counter_id = $_POST['id'];
    $newValue = $_POST["".$counter_id.""];
    $params = array();
    $params['user_id'] = $user_id;
    $params['counter_id'] = $counter_id;
    $STH = $DBH->prepare("
        SELECT CounterValue as Value FROM CounterValues
        WHERE 
            UserID = :user_id
        AND 
            UserCounterID = :counter_id
        ORDER BY 
            DateCreate
            DESC
        LIMIT 1
    ");
    $STH->execute($params);
    $lastValue = $STH->fetch(PDO::FETCH_OBJ)->Value;
    if($lastValue > $newValue)
    { $result = "false"; }
    else
    { $result = "true"; }
    print $result;
    $DBH = null;

所以这个脚本只返回true或false。