小编use*_*659的帖子

刚开始学习ajax虽然我在尝试返回数组中的成功消息时遇到了麻烦.

<script type="text/javascript">
$(function () {
    $('#delete').on('click', function () {
        var $form = $(this).closest('form');
        $.ajax({
            type: $form.attr('method'),
            url: $form.attr('action'),
            data: $form.serialize()
        }).done(function (response) {
            if (response.success) {
                alert('Saved!');
            } else {
                alert('Some error occurred.');
            }
        });
    });
});
</script>

<?php
$array = array();
$array['success'] = TRUE;
echo $array;
?>

response.success应该引用$ array ['success']正确吗？

I have been reading up on htmlspecialchars() for escaping user input and user input from the database. Before anyone says anything, yes, I am filtering on db input as well as using prepared statements with bindings. I am only concerned about securing the output.

I am confused as to when to use ENT_COMPAT, ENT_QUOTES, ENT_NOQUOTES. I came across the following excerpt while doing my research:

The second argument in the htmlspecialchars() call is ENT_COMPAT. I've used …

试图弄清楚为什么这会返回错误的计数......似乎限制对计数没有影响.

例如...如果找到20台计算机,但我将其限制为10(license = 10),我的返回显示20.

$stmt = $db->prepare("
    SELECT count(computer_id)
    FROM computers
    WHERE account_id = :account_id
    ORDER BY computer_id ASC LIMIT 0, :licenses
");

$binding = array(
    'account_id' => $_SESSION['user']['account_id'],
    'licenses' => $_SESSION['user']['licenses']
);
$stmt->execute($binding);

$results = $stmt->fetchAll(PDO::FETCH_COLUMN, 0);

另一方面,这将正确返回10:

$stmt = $db->prepare("
    SELECT computer_id
    FROM computers
    WHERE account_id = :account_id
    ORDER BY computer_id ASC LIMIT 0, :licenses
");

$binding = array(
    'account_id' => $_SESSION['user']['account_id'],
    'licenses' => $_SESSION['user']['licenses']
);
$stmt->execute($binding);

$results = count($stmt->fetchAll(PDO::FETCH_COLUMN, 0));

试图从ul中的最后一个li获取data-id值.它总是返回空.

js:

var ss_id = $('#lightSlider .slides').last().data('id');

ul/li结构:

相同的li结构以不同的数据重复.

<ul id="lightSlider" class="gallery list-unstyled clearfix lightSlider csSlide" style="width: 1124px;">
    <li class="slide active" title="(window has no title) " data-thumb="/showimage.php?show=test1.jpg" data-id="30" style="width: 1094px; float: left; margin-right: 30px;">
        <img class="img-responsive" title="(window has no title) " src="/showimage.php?show=test1.jpg">
        <div style="border-top:1px #dddddd solid; padding:0 15px 15px 15px; background:#f5f5f5;">
            <h4><b>Wed, 06/25/14 @ 4:58:24 am UTC</b></h4>
            <ul class="list-unstyled">
                <li><b>1 :</b> test</li>
                <li><b>2 :</b> test</li>
                <li><b>3 :</b> test</li>
            </ul>
        </div>
    </li>
</ul>