Are there any recommended PHP libraries or functions specifically designed for handling XML data retrieval and processing?

When working with XML data in PHP, it is recommended to use the SimpleXML extension, which provides a simple and easy way to access and manipulate XML data. Additionally, the DOM extension can be used for more complex XML processing tasks. These libraries offer functions and methods specifically designed for handling XML data retrieval and processing efficiently.

// Example of using SimpleXML to retrieve and process XML data
$xmlString = '<data><item>Value 1</item><item>Value 2</item></data>';
$xml = simplexml_load_string($xmlString);

foreach ($xml->item as $item) {
    echo $item . "\n";
}