demo_func_simplexml_addattribute.php:
<!DOCTYPE html> <html> <body> <?php $note=<<<XML <note> <to>Tove</to> <from>Jani</from> <heading>Reminder</heading> <body>Do not forget me this weekend!</body> </note> XML; $xml=new SimpleXMLElement($note); // Add attribute to root element $xml->addAttribute("type","private"); // Add attribute to body element $xml->body->addAttribute("date","2014-01-01"); echo $xml->asXML(); ?> <p>Select View Source to see the added "type" and "date" attributes.</p> </body> </html>