源代码:
<HTML> <HEAD></HEAD> <FONT FACE="'Courier New',Verdana, Arial, Helvetica" SIZE=2> <!DOCTYPE html> <html> <body> <FONT COLOR=#ff0000><?php $note=<<<XML <note> <to>Tove</to> <from>Jani</from> <heading>Reminder</heading> <body>Don't forget me this weekend!</body> </note> XML; $xml=new SimpleXMLElement($note); $xml->addAttribute("type","private"); $xml->body->addAttribute("date","2013-01-01"); echo $xml->asXML(); ?></FONT> <p>Select View Source to see the added "type" attribute (added to the note element), and the "date" attribute (added to the body element).</p> </body> </html> </HTML>
运行结果：
<HTML> <HEAD></HEAD> <FONT FACE="'Courier New',Verdana, Arial, Helvetica" SIZE=2> <!DOCTYPE html> <html> <body> <FONT COLOR=#ff0000><?xml version="1.0"?> <note type="private"> <to>Tove</to> <from>Jani</from> <heading>Reminder</heading> <body date="2013-01-01">Don't forget me this weekend!</body> </note> </FONT> <p>Select View Source to see the added "type" attribute (added to the note element), and the "date" attribute (added to the body element).</p> </body> </html> </HTML>