按节点深度对 DOMXPath 查询结果排序

发布于 2024-10-12 09:56:00 字数 2173 浏览 5 评论 0原文

给出这个示例文档片段：

<html xmlns="http://www.w3.org/1999/xhtml" xmlns:zuq="http://localhost/~/zuqml">
<head></head>
<body>
    <zuq:data name="a" />
    <div>
        <zuq:data name="b" />
    </div>
    <div>
        <zuq:data name="c">
            <zuq:format type="trim">
                <zuq:param name="length">300</zuq:param>
                <zuq:param name="append">
                    <span>
                        <zuq:data name="d" />
                    </span>
                </zuq:param>
            </zuq:format>
        </zuq:data>
    </div>
    <div>
        <zuq:data name="e">
            <zuq:format type="trim">
                <zuq:param name="length">300</zuq:param>
                <zuq:param name="append">
                    <span>
                        <zuq:data name="f" />
                    </span>
                </zuq:param>
            </zuq:format>
        </zuq:data>
    </div>
</body>
</html>

我试图抓取节点进行操作，但按一定顺序：最深的第一个。

我目前已经做到这一点：

$nodeList = $xpath->query('.//zuq:data[not(ancestor::zuq:region)]');
foreach($nodeList as $node){
    $nodeOrder[] = Array($xpath->evaluate('count(ancestor::*)', $node) => $node->getAttribute('name'));
}

print_r($nodeOrder);

当然会吐出这样的内容：

Array
(
[0] => Array
    (
        [2] => a
    )
[1] => Array
    (
        [3] => b
    )
[2] => Array
    (
        [3] => c
    )
[3] => Array
    (
        [7] => d
    )
[4] => Array
    (
        [3] => e
    )
[5] => Array
    (
        [7] => f
    )
)

现在我正在考虑仅使用 array_multi_sort() 或 usort() 来订购DOMNode 对象进行操作。然而，在我看来，有人可能知道一种更有效的方法来解决这个问题。

有什么想法吗？

注意：对于其他不必要的实现细节，我的 XPath 查询字符串所做的超出了此处相关的范围。我刚刚将这个例子从我目前所在的位置拼凑起来。

原文

Given this example document snippet:

<html xmlns="http://www.w3.org/1999/xhtml" xmlns:zuq="http://localhost/~/zuqml">
<head></head>
<body>
    <zuq:data name="a" />
    <div>
        <zuq:data name="b" />
    </div>
    <div>
        <zuq:data name="c">
            <zuq:format type="trim">
                <zuq:param name="length">300</zuq:param>
                <zuq:param name="append">
                    <span>
                        <zuq:data name="d" />
                    </span>
                </zuq:param>
            </zuq:format>
        </zuq:data>
    </div>
    <div>
        <zuq:data name="e">
            <zuq:format type="trim">
                <zuq:param name="length">300</zuq:param>
                <zuq:param name="append">
                    <span>
                        <zuq:data name="f" />
                    </span>
                </zuq:param>
            </zuq:format>
        </zuq:data>
    </div>
</body>
</html>

I'm trying to grab the <zuq:data /> nodes to manipulate, but in a certain order: deepest first.

I've currently gotten up to this point:

$nodeList = $xpath->query('.//zuq:data[not(ancestor::zuq:region)]');
foreach($nodeList as $node){
    $nodeOrder[] = Array($xpath->evaluate('count(ancestor::*)', $node) => $node->getAttribute('name'));
}

print_r($nodeOrder);

Which of course spits out this:

Array
(
[0] => Array
    (
        [2] => a
    )
[1] => Array
    (
        [3] => b
    )
[2] => Array
    (
        [3] => c
    )
[3] => Array
    (
        [7] => d
    )
[4] => Array
    (
        [3] => e
    )
[5] => Array
    (
        [7] => f
    )
)

Now I'm considering just using array_multi_sort() or usort() to order the DOMNode objects for manipulation if I were to go forward with my current 'solution'. However, it seems to me that someone might know of a more efficient way to go about this.

Any thoughts?

Note: My XPath query string is doing more than what is relevant here, for other unnecessary implementation details. I just pieced this example together from where I'm at currently.

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