XML处理类

<?php
	$str = <<<XML
<?xml version='1.0' encoding='UTF-8'?>
<note></note>
XML;
	//$xml = simplexml_load_string($str);
	$xml = simplexml_load_file('demo.xml');
	
	
	foreach($xml->item as $v){
		unset();
	
		echo $v->id,' <br /> ';//aaa <br />
		echo $v->name,' <br /> ';//aaa <br />
		//$attributes = $v->name->attributes();
		//var_dump($attributes);
		echo $v->name->attributes().' <br /> ';//aaa <br />
		echo $v->name->attributes().' <br /> ';//aaa <br />
		echo $v->age,' <br /> ';//aaa <br />
	}
	die;
	$item=$xml->addChild('item');
	$item->addChild('id','3');
	$item->addChild('name','ccc_new')->addAttribute("type", "small");
	$item->addChild('age','40');
	$xml->asXML('demo.xml');
?>