How Can PHP's DOMDocument Extract and Preserve HTML `` Tags from a Table?

DOMDocument in PHP: Parsing and Manipulating HTML Documents

When working with HTML documents, the DOM (Document Object Model) provides a structured and object-oriented representation of the document's contents. PHP's DOMDocument class enables us to interact with and modify HTML documents at the node level.

To parse an HTML document using DOMDocument, we follow these steps:

1. Create a DOMDocument object and load the HTML content using loadHTML().
2. Use DOMXPath to query and manipulate the parsed document.

In your example, you want to extract all tags from a HTML table and analyze their content. However, the code you provided strips the HTML tags from the result, which is not desirable.

To preserve the HTML tags, we need to understand that a DOMDocument represents the entire HTML document as a hierarchical tree structure, with nodes representing various elements (such as the

$dom = new DOMDocument();
@$dom->loadHTML($html);

$xpath = new DOMXPath($dom);

$trs = $xpath->query('//tr[@id="showContent"]');
foreach ($trs as $tr) {
    echo $dom->saveXML($tr);
    echo '<br>';
}

This code uses saveXML() to output the actual HTML representation of each

To extract specific information from the

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