demo_func_simplexml_addattribute 在线工具
<?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();
?>