What are the advantages and disadvantages of using DOMDocument in PHP to handle XML data with special characters?

When handling XML data with special characters in PHP using DOMDocument, the advantage is that it provides a built-in way to parse and manipulate XML documents easily. However, one disadvantage is that special characters like &, <, and > may need to be properly encoded to avoid parsing errors or security vulnerabilities.

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

// Load XML data with special characters
$xmlData = '<root>Hello & World</root>';
$doc->loadXML($xmlData);

// Output the XML with special characters properly encoded
echo $doc->saveXML();