PHP DOMDocument，将所有没有节点的元素用p包裹起来

Question

我从 RTE 得到 HTML。之后我使用 DOMDocument Class.

操作它的内容

编辑有时会给我没有节点的文本，例如：

<p>This is some text inside a text-node</p>
This is text without any node and should be wrapped with a text-node

是否可以使用 DOMDocument 用文本节点包装此文本？

我在函数中使用了以下代码：

    $dom = new \DOMDocument();
    $dom->loadHTML($MY_HTML);

    $xpath = new \DOMXPath($dom);

    foreach ($xpath->query('//p') as $k => $paragraph) {
        $paragraph->setAttribute('class', $paragraph->getAttribute('class') . ' bodytext');
    }

    $body = $xpath->query('/html/body');
    return preg_replace('/^<body>|<\/body>$/', '', $dom->saveXml($body->item(0)));

Answer 1

文本在技术上已经在 "text node" 内，但这将用段落节点包裹所有展开的文本节点：

<?php

$html = <<<'END'
<div>
    <p>This is some text inside a text-node</p>
    This is text without any node and should be wrapped with a text-node
</div>
END;

$doc = new \DOMDocument();
$doc->loadHTML($html, LIBXML_HTML_NOIMPLIED);

$xpath = new \DOMXPath($doc);
$nodes = $xpath->query('//text()[not(ancestor::p)][normalize-space()]');

foreach ($nodes as $node) {
    $p = $doc->createElement('p', htmlspecialchars(trim($node->textContent)));
    $node->parentNode->replaceChild($p, $node);
}

print $doc->saveHTML($doc->documentElement);

// <div>
//   <p>This is some text inside a text-node</p>
// <p>This is text without any node and should be wrapped with a text-node</p>
// </div>

关键是 select 所有没有 p 祖先的非空文本节点，使用 //text()[not(ancestor::p)][normalize-space()] XPath 查询。

PHP DOMDocument，将所有没有节点的元素用p包裹起来

PHP DOMDocument, wrap all elements without node with p

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