How can Simplexml be beneficial for extracting specific information from HTML strings in PHP, and what are its limitations compared to DOMDocument?

Simplexml can be beneficial for extracting specific information from HTML strings in PHP by providing a simple and easy-to-use interface for parsing XML and HTML documents. It allows for easy navigation through the document structure and extraction of desired data using XPath queries. However, Simplexml has limitations compared to DOMDocument, such as limited support for complex document structures and less flexibility in handling malformed or invalid HTML.

$html = '<div><p>Hello, <strong>world</strong>!</p></div>';

// Create a SimpleXMLElement object from the HTML string
$xml = simplexml_load_string($html);

// Extract specific information using XPath
$strongText = $xml->xpath('//strong')[0];

echo $strongText;