PHP获取XML属性值

 

<?php
header("Content-Type:text/html;charset=utf-8");    //设置编码
/*  创建XML格式的字符串  */
$str = <<<XML
<?xml version='1.0' encoding='gb2312'?>
<object name='commodity'>
	<book type='computerbook'>
		<bookname name='PHP从入门到精通'/>
	</book>
	<book type='historybook'>
		<booknanme name='上下五千年'/>
	</book>
</object>
XML;
$xml = simplexml_load_string($str);    //创建一个simplexml对象
foreach($xml->children() as $layer_one){    //循环子节点元素
    foreach($layer_one->attributes() as $name => $vl){    //输出各个节点的属性和值
        echo $name.'::'.$vl;
    }
    echo '<br>';
    foreach($layer_one->children() as $layer_two){    //输出第二层节点元素
        foreach($layer_two->attributes() as $nm => $vl){    //输出各个节点的属性和值
            echo $nm."::".$vl;
        }
        echo '<br>';
    }
}
?>

<?php
$str = <<<XML
<VAR VarNum="90">
  <option>1</option>
</VAR>
XML;

$xml=simplexml_load_string($str);
$option=$xml->option;

var_dump((string)$xml['VarNum']);
?>