How Can I Preserve HTML Node Structure When Using DOMDocument in PHP?

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

$xpath = new DOMXPath($dom);
$tags = $xpath->query('.//div[@id="showContent"]//tr');

foreach ($tags as $tag) {
    echo $dom->saveXML($tag);
    echo '<br>';
}</p>
<p>In this modified code:</p>
<ul><li>$dom->saveXML($tag) generates the XML representation of the node, including its child elements and attributes, thus preserving the HTML tags.</li></ul>
<p><strong>Specific Node Queries</strong></p>
<p>If you need to extract specific information, such as links from a table, you can use methods like:</p>
<pre class="brush:php;toolbar:false">$div = $dom->getElementById('showContent');
foreach ($div->getElementsByTagName('a') as $link) {
    echo $dom->saveXML($link);
}