使用PHP的DOM提取HTML页面 [英] Extract HTML of a Scraped Page Using PHP's DOM

问题描述

是否可以通过PHP的DOM工具（例如$ div = $ dom-> getElementsByTagName（'table'） - > item（0）;）提取的HTML片段的内容中创建HTML输出，以便创建的HTML只包含具有指定标签名称的元素及其后代？

Is it possible to create HTML output from the contents of an HTML snippet that has been extracted via PHP's DOM tools (e.g. $div = $dom->getElementsByTagName('table')->item(0);) such that the HTML created contains just the elements with specified tag name, and their descendants?

否则，还有其他方法可以从页面的完整HTML轻松提取HTML片段吗？我只是想提取一个页面的第一张表，并且只显示该表格及其内容。

Otherwise, are there perhaps any other ways to easily extract a snippet of HTML from the full HTML of a page? I just want to extract the first table of a page I scraped, and display just that table and its content.

推荐答案

您可以将节点传递到 DOMDocument :: saveXML（）

Yes, you can pass a node to DOMDocument::saveXML()

echo $dom->saveXml($div);

然后会给你节点的outerHTML

which will then give you the outerHTML of the node

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