PHP XPath。如何返回带html标签的字符串？

发布于 2024-11-10 15:27:55 字数 1036 浏览 4 评论 0原文

<?php
    libxml_use_internal_errors(true);
    $html = '
<html>
<body>
    <div>
        Message <b>bold</b>, <s>strike</s>
    </div>
    <div>
        <span class="how">
            <a href="link" title="text">Link</a>, <b> BOLD </b>
        </span>
    </div>
</body>
</html>
    ';
    $dom = new DOMDocument();
    $dom->preserveWhiteSpace = false;
    $dom->strictErrorChecking = false;
    $dom->recover = true;
    $dom->loadHTML($html);

    $xpath = new DOMXPath($dom);
    $messages = $xpath->query("//div");
    foreach($messages as $message)
    {
        echo $message->nodeValue;
    }

此代码返回“消息粗体，删除链接，粗体”，不带 html 标签...

我想输出以下代码：

Message <b>bold</b>, <s>strike</s>

<span class="how">
     <a href="link" title="text">Link</a>, <b> BOLD </b>
</span>

你能帮我吗？

原文

<?php
    libxml_use_internal_errors(true);
    $html = '
<html>
<body>
    <div>
        Message <b>bold</b>, <s>strike</s>
    </div>
    <div>
        <span class="how">
            <a href="link" title="text">Link</a>, <b> BOLD </b>
        </span>
    </div>
</body>
</html>
    ';
    $dom = new DOMDocument();
    $dom->preserveWhiteSpace = false;
    $dom->strictErrorChecking = false;
    $dom->recover = true;
    $dom->loadHTML($html);

    $xpath = new DOMXPath($dom);
    $messages = $xpath->query("//div");
    foreach($messages as $message)
    {
        echo $message->nodeValue;
    }

This code returns "Message bold, strike Link, BOLD " without html tags...

I want to output the following code:

Message <b>bold</b>, <s>strike</s>

<span class="how">
     <a href="link" title="text">Link</a>, <b> BOLD </b>
</span>

Can you help me?

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层林尽染 2024-11-17 15:27:55

$dom = new DOMDocument;
foreach($messages as $message)
{
    echo $dom->saveHTML($message); 
}

使用saveHTML()

$dom = new DOMDocument;
foreach($messages as $message)
{
    echo $dom->saveHTML($message); 
}

Use saveHTML()

回复收藏 0 原文

宛菡 2024-11-17 15:27:55

我可以使用 SimpleXML 快速完成（如果您可以的话）从 DOMDocument 和 DOMXPath 切换，可能您会采用我的解决方案）：

$html = '
<html>
<body>
    <div>
        Message <b>bold</b>, <s>strike</s>
    </div>
    <div>
        <span class="how">
            <a href="link" title="text">Link</a>, <b> BOLD </b>
        </span>
    </div>
</body>
</html>
    ';
    $xml = simplexml_load_string($html);
    $arr = $xml->xpath('//div/*');
    foreach ($arr as $x) {
      echo $x->asXML();
    }

I can do it using SimpleXML really quickly (if it's okay for you to switch from DOMDocument and DOMXPath, probably you will go with my solution):

$html = '
<html>
<body>
    <div>
        Message <b>bold</b>, <s>strike</s>
    </div>
    <div>
        <span class="how">
            <a href="link" title="text">Link</a>, <b> BOLD </b>
        </span>
    </div>
</body>
</html>
    ';
    $xml = simplexml_load_string($html);
    $arr = $xml->xpath('//div/*');
    foreach ($arr as $x) {
      echo $x->asXML();
    }

回复收藏 0 原文

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