In PHP, what are some best practices for accessing and manipulating external HTML content using DOM access methods?

When accessing and manipulating external HTML content using DOM access methods in PHP, it is best practice to use the DOMDocument class to load the HTML content and then use DOMXPath to query and manipulate the elements. This approach ensures a more structured and reliable way of interacting with the HTML content.

// Create a new DOMDocument object
$doc = new DOMDocument();

// Load the external HTML content
$doc->loadHTMLFile('http://example.com');

// Create a new DOMXPath object
$xpath = new DOMXPath($doc);

// Query for specific elements using XPath
$elements = $xpath->query('//div[@class="example"]');

// Loop through the elements and manipulate them
foreach ($elements as $element) {
    // Manipulate the element here
}