<?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>
  <book>
    <computerbook>PHP从入门到精通</computerbook>
  </book>
  <book>
    <computerbook>PHP项目开发全程实录</computerbook>
  </book>
</object>
XML;
/*  **************************  */
$xml = simplexml_load_string($str);							//创建一个simplexml对象
foreach($xml->children() as $layer_one){							//循环输出根节点
  print_r($layer_one);										//查看节点结构
  echo '<br>';
  foreach($layer_one->children() as $layer_two){