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用 PHP5 轻松解析 XML

yipeiwu_com5年前PHP代码库

用 sax 方式的时候，要自己构建3个函数，而且要直接用这三的函数来返回数据，要求较强的逻辑。在处理不同结构的 xml 的时候，还要重新进行构造这三个函数，麻烦！

用 dom 方式，倒是好些，但是他把每个节点都看作是一个 node,，操作起来要写好多的代码，麻烦！

网上有好多的开源的 xml 解析的类库，以前看过几个，但是心里总是觉得不踏实，感觉总是跟在别人的屁股后面。

这几天在搞 Java，挺累的，所以决定换换脑袋，写点 PHP 代码，为了防止以后 XML 解析过程再令我犯难，就花了一天的时间写了下面一个 XML 解析的类，于是就有了下面的东西。

实现方式是通过包装“sax方式的解析结果”来实现的。总的来说，对于我个人来说挺实用的，性能也还可以，基本上可以完成大多数的处理要求。

功能:
1\ 对基本的 XML 文件的节点进行 查询 / 添加 / 修改 / 删除 工作。
2\ 导出 XML 文件的所有数据到一个数组里面。
3\ 整个设计采用了 OO 方式,在操作结果集的时候，使用方法类似于 dom

缺点:
1\ 每个节点最好都带有一个id(看后面的例子)，每个“节点名字”=“节点的标签_节点的id”，如果这个 id 值没有设置，程序将自动给他产生一个 id，这个 id 就是这个节点在他的上级节点中的位置编号，从 0 开始。
2\ 查询某个节点的时候可以通过用“|”符号连接“节点名字”来进行。这些“节点名字”都是按顺序写好的上级节点的名字。

使用说明：
运行下面的例子，在执行结果页面上可以看到函数的使用说明

代码是通过 PHP5 来实现的，在 PHP4 中无法正常运行。

由于刚刚写完，所以没有整理文档，下面的例子演示的只是一部分的功能，代码不是很难，要是想知道更多的功能，可以研究研究源代码。

目录结构:

test.php
test.xml
xml / SimpleDocumentBase.php
xml / SimpleDocumentNode.php
xml / SimpleDocumentRoot.php
xml / SimpleDocumentParser.php
 
文件:test.xml

<?xml version="1.0" encoding="GB2312"?>
<shop>
 <name>华联</name>
 <address>北京长安街－9999号</address>
 <desc>连锁超市</desc>
 <cat id="food">
  <goods id="food11">
   <name>food11</name>
   <price>12.90</price>
  </goods>
  <goods id="food12">
   <name>food12</name>
   <price>22.10</price>
   <desc creator="hahawen">好东西推荐</desc>
  </goods>
 </cat>
 <cat>
  <goods id="tel21">
   <name>tel21</name>
   <price>1290</price>
  </goods>
 </cat>
 <cat id="coat">
  <goods id="coat31">
   <name>coat31</name>
   <price>112</price>
  </goods>
  <goods id="coat32">
   <name>coat32</name>
   <price>45</price>
  </goods>
 </cat>
 <special id="hot">
  <goods>
   <name>hot41</name>
   <price>99</price>
  </goods>
 </special>
</shop>

文件:test.php

<?php
require_once "xml/SimpleDocumentParser.php";
require_once "xml/SimpleDocumentBase.php";
require_once "xml/SimpleDocumentRoot.php";
require_once "xml/SimpleDocumentNode.php";
$test = new SimpleDocumentParser();
$test->parse("test.xml");
$dom = $test->getSimpleDocument();
echo "<pre>";
echo "<hr><font color=red>";
echo "下面是通过函数getSaveData()返回的整个xml数据的数组";
echo "</font><hr>";
print_r($dom->getSaveData());
echo "<hr><font color=red>";
echo "下面是通过setValue()函数，给给根节点添加信息，添加后显示出结果xml文件的内容";
echo "</font><hr>";
$dom->setValue("telphone", "123456789");
echo htmlspecialchars($dom->getSaveXml());
echo "<hr><font color=red>";
echo "下面是通过getNode()函数，返回某一个分类下的所有商品的信息";
echo "</font><hr>";
$obj = $dom->getNode("cat_food");
$nodeList = $obj->getNode();
foreach($nodeList as $node){
    $data = $node->getValue();
    echo "<font color=red>商品名：".$data[name]."</font><br>";
    print_R($data);
    print_R($node->getAttribute());
}
echo "<hr><font color=red>";
echo "下面是通过findNodeByPath()函数，返回某一商品的信息";
echo "</font><hr>";
$obj = $dom->findNodeByPath("cat_food|goods_food11");
if(!is_object($obj)){
    echo "该商品不存在";
}else{
    $data = $obj->getValue();
    echo "<font color=red>商品名：".$data[name]."</font><br>";
    print_R($data);
    print_R($obj->getAttribute());
}
echo "<hr><font color=red>";
echo "下面是通过setValue()函数，给商品\"food11\"添加属性, 然后显示添加后的结果";
echo "</font><hr>";
$obj = $dom->findNodeByPath("cat_food|goods_food11");
$obj->setValue("leaveword", array("value"=>"这个商品不错", "attrs"=>array("author"=>"hahawen", "date"=>date('Y-m-d'))));
echo htmlspecialchars($dom->getSaveXml());
echo "<hr><font color=red>";
echo "下面是通过removeValue()/removeAttribute()函数，给商品\"food11\"改变和删除属性, 然后显示操作后的结果";
echo "</font><hr>";
$obj = $dom->findNodeByPath("cat_food|goods_food12");
$obj->setValue("name", "new food12");
$obj->removeValue("desc");
echo htmlspecialchars($dom->getSaveXml());
echo "<hr><font color=red>";
echo "下面是通过createNode()函数，添加商品, 然后显示添加后的结果";
echo "</font><hr>";
$obj = $dom->findNodeByPath("cat_food");
$newObj = $obj->createNode("goods", array("id"=>"food13"));
$newObj->setValue("name", "food13");
$newObj->setValue("price", 100);
echo htmlspecialchars($dom->getSaveXml());
echo "<hr><font color=red>";
echo "下面是通过removeNode()函数，删除商品, 然后显示删除后的结果";
echo "</font><hr>";
$obj = $dom->findNodeByPath("cat_food");
$obj->removeNode("goods_food12");
echo htmlspecialchars($dom->getSaveXml());

?>
 
文件:SimpleDocumentParser.php
 
<?php
/**
 *================================================
 * 
 * @author     hahawen(大龄青年) 
 * @since      2004-12-04
 * @copyright  Copyright (c) 2004, NxCoder Group 
 *
 *================================================
 */
 /**
 * class SimpleDocumentParser
 * use SAX parse xml file, and build SimpleDocumentObject 
 * all this pachage's is work for xml file, and method is action as DOM.
 *
 * @package SmartWeb.common.xml
 * @version 1.0
 */
 class SimpleDocumentParser
 {
     private $domRootObject = null;
     private $currentNO = null;
     private $currentName  = null;
     private $currentValue = null;
     private $currentAttribute = null;
     public
     function getSimpleDocument()
     {
         return $this->domRootObject;
     }
     public function parse($file)
     {
         $xmlParser = xml_parser_create();
         xml_parser_set_option($xmlParser,XML_OPTION_CASE_FOLDING,
         0);
         xml_parser_set_option($xmlParser,XML_OPTION_SKIP_WHITE, 1);
         xml_parser_set_option($xmlParser,
         XML_OPTION_TARGET_ENCODING, 'UTF-8');
         xml_set_object($xmlParser, $this);
         xml_set_element_handler($xmlParser, "startElement", "endElement");
         xml_set_character_data_handler($xmlParser,
         "characterData");
         if (!xml_parse($xmlParser, file_get_contents($file)))
         die(sprintf("XML error: %s at line %d", xml_error_string(xml_get_error_code($xmlParser)),
         xml_get_current_line_number($xmlParser)));
         xml_parser_free($xmlParser);
     }
     private function startElement($parser, $name, $attrs)
     {
         $this->currentName = $name;
         $this->currentAttribute = $attrs;
         if($this->currentNO == null)
         {
             $this->domRootObject = new SimpleDocumentRoot($name);
             $this->currentNO = $this->domRootObject;
         }
         else
         {
             $this->currentNO = $this->currentNO->createNode($name, $attrs);
         }
     }
     private function endElement($parser, $name)
     {
         if($this->currentName==$name)
         {
             $tag = $this->currentNO->getSeq();
             $this->currentNO  = $this->currentNO->getPNodeObject();
             if($this->currentAttribute!=null && sizeof($this->currentAttribute)>0)
             $this->currentNO->setValue($name, array('value'=>$this->currentValue, 'attrs'=>$this->currentAttribute));
             else
             $this->currentNO->setValue($name, $this->currentValue);
             $this->currentNO->removeNode($tag);
         }
         else
         {
             $this->currentNO = (is_a($this->currentNO, 'SimpleDocumentRoot'))?   null:
             $this->currentNO->getPNodeObject();
         }
     }
     private function characterData($parser,  $data)
     {
         $this->currentValue = iconv('UTF-8', 'GB2312', $data);
     }

     function __destruct()
     {
         unset($this->domRootObject);
     }
 }
?>
 
文件:SimpleDocumentBase.php
 
<?php
/**
 *=================================================
 *
 * @author     hahawen(大龄青年) 
 * @since      2004-12-04
 * @copyright  Copyright (c) 2004, NxCoder Group
 *
 *=================================================
 */
 /**
 * abstract class SimpleDocumentBase
 * base class for xml file parse
 * all this pachage's is work for xml file, and method is action as DOM.
 *
 * 1\ add/update/remove data of xml file.
 * 2\ explode data to array.
 * 3\ rebuild xml file
 *
 * @package SmartWeb.common.xml
 * @abstract
 * @version 1.0
 */
 abstract class SimpleDocumentBase
 {
     private $nodeTag = null;
     private $attributes = array();
     private $values =
     array();
     private $nodes = array();
     function __construct($nodeTag)
     {
         $this->nodeTag = $nodeTag;
     }
     public function getNodeTag()
     {
         return $this->nodeTag;
     }
     public function setValues($values){
         $this->values = $values;
     }
     public function setValue($name, $value)
     {
         $this->values[$name] = $value;
     }
     public function getValue($name=null)
     {
         return $name==null?
         $this->values: $this->values[$name];
     }
 
     public function removeValue($name)
     {
         unset($this->values["$name"]);
     }
     public function setAttributes($attributes){
         $this->attributes = $attributes;
     }
     public function setAttribute($name, $value)
     {
         $this->attributes[$name] = $value;
     }
     public function getAttribute($name=null)
     {
         return $name==null? $this->attributes:
         $this->attributes[$name];
     }
     public function removeAttribute($name)
     {
         unset($this->attributes["$name"]);
     }
     public function getNodesSize()
     {
         return sizeof($this->nodes);
     }
     protected function setNode($name, $nodeId)
     {
         $this->nodes[$name]
         = $nodeId;
     }
     public abstract function createNode($name, $attributes);
     public abstract function removeNode($name);
     public abstract function getNode($name=null);
     protected function getNodeId($name=null)
     {
         return $name==null? $this->nodes: $this->nodes[$name];
     }
     protected function createNodeByName($rootNodeObj, $name, $attributes, $pId)
     {
         $tmpObject = $rootNodeObj->createNodeObject($pId, $name, $attributes);
         $key = isset($attributes[id])?
         $name.'_'.$attributes[id]: $name.'_'.$this->getNodesSize();
         $this->setNode($key, $tmpObject->getSeq());
         return $tmpObject;
     }
     protected function removeNodeByName($rootNodeObj, $name)
     {
         $rootNodeObj->removeNodeById($this->getNodeId($name));
         if(sizeof($this->nodes)==1)
         $this->nodes = array();
         else
         unset($this->nodes[$name]);
     }
     protected function getNodeByName($rootNodeObj, $name=null)
     {
         if($name==null)
         {
             $tmpList = array();
             $tmpIds = $this->getNodeId();
             foreach($tmpIds as $key=>$id)
             $tmpList[$key] = $rootNodeObj->getNodeById($id);
             return $tmpList;
         }
         else
         {
             $id = $this->getNodeId($name);
             if($id===null)
             {
                 $tmpIds = $this->getNodeId();
                 foreach($tmpIds as $tkey=>$tid)
                 {
                     if(strpos($key, $name)==0)
                     {
                         $id = $tid;
                         break;
                     }
                 }
             }
             return $rootNodeObj->getNodeById($id);
         }
     }
     public function findNodeByPath($path)
     {
         $pos = strpos($path, '|');
         if($pos<=0)
         {
             return $this->getNode($path);

         }
         else
         {
             $tmpObj = $this->getNode(substr($path, 0,
             $pos));
             return is_object($tmpObj)?
             $tmpObj->findNodeByPath(substr($path,
             $pos+1)):
             null;
         }
     }
     public function getSaveData()
     {
         $data = $this->values;
         if(sizeof($this->attributes)>0)
         $data[attrs] = $this->attributes;
         $nodeList = $this->getNode();

         if($nodeList==null)
         return $data;
         foreach($nodeList as $key=>$node)
         {
             $data[$key] = $node->getSaveData();
         }
         return $data;
     }

     public function getSaveXml($level=0)
     {
         $prefixSpace
         = str_pad("",
         $level, "\t");
         $str = "$prefixSpace<$this->nodeTag";
 
         foreach($this->attributes as $key=>$value)
         $str .= " $key=\"$value\"";
         $str .= ">\r\n";

         foreach($this->values as $key=>$value){
             if(is_array($value))
             {
                 $str .= "$prefixSpace\t<$key";
                 foreach($value[attrs] as $attkey=>$attvalue)
                 $str .= " $attkey=\"$attvalue\"";
                 $tmpStr = $value[value];

             }
             else
             {
                 $str .= "$prefixSpace\t<$key";
                 $tmpStr = $value;
             }
             $tmpStr = trim(trim($tmpStr, "\r\n"));
             $str .= ($tmpStr===null || $tmpStr==="")? " />\r\n": ">$tmpStr</$key>\r\n";
         }
         foreach($this->getNode() as $node)
         $str .= $node->getSaveXml($level+1)."\r\n";

         $str .= "$prefixSpace</$this->nodeTag>";
         return $str;
     }
 
     function __destruct()
     {
         unset($this->nodes, $this->attributes, $this->values);
     }
 }
?>
 
文件:SimpleDocumentRoot.php
 
<?php
/**
 *==============================================
 *
 * @author     hahawen(大龄青年) 
 * @since      2004-12-04
 * @copyright  Copyright (c) 2004, NxCoder Group
 *
 *==============================================
 */
 /**
 * class SimpleDocumentRoot
 * xml root class, include values/attributes/subnodes.
 * all this pachage's is work for xml file, and method is action as DOM.
 *
 * @package SmartWeb.common.xml
 * @version 1.0
 */
class SimpleDocumentRoot extends SimpleDocumentBase
{
    private $prefixStr = '';
    private $nodeLists = array();
    function __construct($nodeTag)
    {
        parent::__construct($nodeTag);
    }
    public function createNodeObject($pNodeId, $name, $attributes)
    {
        $seq = sizeof($this->nodeLists);
        $tmpObject = new SimpleDocumentNode($this,
        $pNodeId, $name, $seq);
        $tmpObject->setAttributes($attributes);
        $this->nodeLists[$seq] = $tmpObject;
        return $tmpObject;
    }
    public function removeNodeById($id)
    {
        if(sizeof($this->nodeLists)==1)
        $this->nodeLists = array();
        else
        unset($this->nodeLists[$id]);
    }
    public function getNodeById($id)
    {
        return $this->nodeLists[$id];
    }
    public function createNode($name, $attributes)
    {
        return $this->createNodeByName($this, $name, $attributes, -1);
    }
    public function removeNode($name)
    {
        return $this->removeNodeByName($this, $name);
    }
    public function getNode($name=null)
    {
        return $this->getNodeByName($this, $name);
    }
    public function getSaveXml()
    {
        $prefixSpace = "";
        $str = $this->prefixStr."\r\n";
        return $str.parent::getSaveXml(0);
    }
}
?>
 
文件:SimpleDocumentNode.php
 
<?php
/**
 *===============================================
 *
 * @author     hahawen(大龄青年) 
 * @since      2004-12-04
 * @copyright  Copyright (c) 2004, NxCoder Group
 *
 *===============================================
 */
 /**
 * class SimpleDocumentNode
 * xml Node class, include values/attributes/subnodes.
 * all this pachage's is work for xml file, and method is action as DOM.
 *
 * @package SmartWeb.common.xml
 * @version 1.0
 */
 class SimpleDocumentNode extends SimpleDocumentBase
 {
     private $seq = null;
     private $rootObject = null;
     private $pNodeId = null;
     function __construct($rootObject, $pNodeId, $nodeTag, $seq)
     {
         parent::__construct($nodeTag);
         $this->rootObject = $rootObject;
         $this->pNodeId = $pNodeId;
         $this->seq = $seq;
     }
     public function getPNodeObject()
     {
         return ($this->pNodeId==-1)?
         $this->rootObject:
         $this->rootObject->getNodeById($this->pNodeId);
     }
     public function getSeq(){
         return $this->seq;
     }
     public function createNode($name, $attributes)
     {
         return $this->createNodeByName($this->rootObject,
         $name, $attributes,
         $this->getSeq());
     }
     public function removeNode($name)
     {
         return $this->removeNodeByName($this->rootObject, $name);
     }

     public function getNode($name=null)
     {
         return $this->getNodeByName($this->rootObject,
         $name);
     }
 }
?>
 
下面是例子运行对结果
 
下面是通过函数getSaveData()返回的整个xml数据的数组
Array
(
    [name] => 华联
    [address] => 北京长安街－9999号
    [desc] => 连锁超市
    [cat_food] => Array
        (
            [attrs] => Array
                (
                    [id] => food
                )

            [goods_food11] => Array
                (
                    [name] => food11
                    [price] => 12.90
                    [attrs] => Array
                        (
                            [id] => food11
                        )

                )

            [goods_food12] => Array
                (
                    [name] => food12
                    [price] => 22.10
                    [desc] => Array
                        (
                            [value] => 好东西推荐
                            [attrs] => Array
                                (
                                    [creator] => hahawen
                                )

                        )

                    [attrs] => Array
                        (
                            [id] => food12
                        )

                )

        )

    [cat_1] => Array
        (
            [goods_tel21] => Array
                (
                    [name] => tel21
                    [price] => 1290
                    [attrs] => Array
                        (
                            [id] => tel21
                        )

                )

        )

    [cat_coat] => Array
        (
            [attrs] => Array
                (
                    [id] => coat
                )

            [goods_coat31] => Array
                (
                    [name] => coat31
                    [price] => 112
                    [attrs] => Array
                        (
                            [id] => coat31
                        )

                )

            [goods_coat32] => Array
                (
                    [name] => coat32
                    [price] => 45
                    [attrs] => Array
                        (
                            [id] => coat32
                        )

                )

        )

    [special_hot] => Array
        (
            [attrs] => Array
                (
                    [id] => hot
                )

            [goods_0] => Array
                (
                    [name] => hot41
                    [price] => 99
                )

        )

)
下面是通过setValue()函数，给给根节点添加信息，添加后显示出结果xml文件的内容
<?xml version="1.0" encoding="GB2312" ?>
<shop>
<name>华联</name>
<address>北京长安街－9999号</address>
<desc>连锁超市</desc>
<telphone>123456789</telphone>
<cat id="food">
  <goods id="food11">
   <name>food11</name>
   <price>12.90</price>
  </goods>
  <goods id="food12">
   <name>food12</name>
   <price>22.10</price>
   <desc creator="hahawen">好东西推荐</desc>
  </goods>
</cat>
<cat>
  <goods id="tel21">
   <name>tel21</name>
   <price>1290</price>
  </goods>
</cat>
<cat id="coat">
  <goods id="coat31">
   <name>coat31</name>
   <price>112</price>
  </goods>
  <goods id="coat32">
   <name>coat32</name>
   <price>45</price>
  </goods>
</cat>
<special id="hot">
  <goods>
   <name>hot41</name>
   <price>99</price>
  </goods>
</special>
</shop>
下面是通过getNode()函数，返回某一个分类下的所有商品的信息
商品名：food11
Array
(
    [name] => food11
    [price] => 12.90
)
Array
(
    [id] => food11
)
商品名：food12
Array
(
    [name] => food12
    [price] => 22.10
    [desc] => Array
        (
            [value] => 好东西推荐
            [attrs] => Array
                (
                    [creator] => hahawen
                )

        )

)
Array
(
    [id] => food12
)
下面是通过findNodeByPath()函数，返回某一商品的信息
商品名：food11
Array
(
    [name] => food11
    [price] => 12.90
)
Array
(
    [id] => food11
)
下面是通过setValue()函数，给商品"food11"添加属性, 然后显示添加后的结果
<?xml version="1.0" encoding="GB2312" ?>
<shop>
<name>华联</name>
<address>北京长安街－9999号</address>
<desc>连锁超市</desc>
<telphone>123456789</telphone>
<cat id="food">
  <goods id="food11">
   <name>food11</name>
   <price>12.90</price>
   <leaveword author="hahawen" date="2004-12-05">这个商品不错</leaveword>
  </goods>
  <goods id="food12">
   <name>food12</name>
   <price>22.10</price>
   <desc creator="hahawen">好东西推荐</desc>
  </goods>
</cat>
<cat>
  <goods id="tel21">
   <name>tel21</name>
   <price>1290</price>
  </goods>
</cat>
<cat id="coat">
  <goods id="coat31">
   <name>coat31</name>
   <price>112</price>
  </goods>
  <goods id="coat32">
   <name>coat32</name>
   <price>45</price>
  </goods>
</cat>
<special id="hot">
  <goods>
   <name>hot41</name>
   <price>99</price>
  </goods>
</special>
</shop>
下面是通过removeValue()/removeAttribute()函数，给商品"food11"改变和删除属性, 然后显示操作后的结果
<?xml version="1.0" encoding="GB2312" ?>
<shop>
<name>华联</name>
<address>北京长安街－9999号</address>
<desc>连锁超市</desc>
<telphone>123456789</telphone>
<cat id="food">
  <goods id="food11">
   <name>food11</name>
   <price>12.90</price>
   <leaveword author="hahawen" date="2004-12-05">这个商品不错</leaveword>
  </goods>
  <goods id="food12">
   <name>new food12</name>
   <price>22.10</price>
  </goods>
</cat>
<cat>
  <goods id="tel21">
   <name>tel21</name>
   <price>1290</price>
  </goods>
</cat>
<cat id="coat">
  <goods id="coat31">
   <name>coat31</name>
   <price>112</price>
  </goods>
  <goods id="coat32">
   <name>coat32</name>
   <price>45</price>
  </goods>
</cat>
<special id="hot">
  <goods>
   <name>hot41</name>
   <price>99</price>
  </goods>
</special>
</shop>
下面是通过createNode()函数，添加商品, 然后显示添加后的结果
<?xml version="1.0" encoding="GB2312" ?>
<shop>
<name>华联</name>
<address>北京长安街－9999号</address>
<desc>连锁超市</desc>
<telphone>123456789</telphone>
<cat id="food">
  <goods id="food11">
   <name>food11</name>
   <price>12.90</price>
   <leaveword author="hahawen" date="2004-12-05">这个商品不错</leaveword>
  </goods>
  <goods id="food12">
   <name>new food12</name>
   <price>22.10</price>
  </goods>
  <goods id="food13">
   <name>food13</name>
   <price>100</price>
  </goods>
</cat>
<cat>
  <goods id="tel21">
   <name>tel21</name>
   <price>1290</price>
  </goods>
</cat>
<cat id="coat">
  <goods id="coat31">
   <name>coat31</name>
   <price>112</price>
  </goods>
  <goods id="coat32">
   <name>coat32</name>
   <price>45</price>
  </goods>
</cat>
<special id="hot">
  <goods>
   <name>hot41</name>
   <price>99</price>
  </goods>
</special>
</shop>
下面是通过removeNode()函数，删除商品, 然后显示删除后的结果
<?xml version="1.0" encoding="GB2312" ?>
<shop>
<name>华联</name>
<address>北京长安街－9999号</address>
<desc>连锁超市</desc>
<telphone>123456789</telphone>
<cat id="food">
  <goods id="food11">
   <name>food11</name>
   <price>12.90</price>
   <leaveword author="hahawen" date="2004-12-05">这个商品不错</leaveword>
  </goods>
  <goods id="food13">
   <name>food13</name>
   <price>100</price>
  </goods>
</cat>
<cat>
  <goods id="tel21">
   <name>tel21</name>
   <price>1290</price>
  </goods>
</cat>
<cat id="coat">
  <goods id="coat31">
   <name>coat31</name>
   <price>112</price>
  </goods>
  <goods id="coat32">
   <name>coat32</name>
   <price>45</price>
  </goods>
</cat>
<special id="hot">
  <goods>
   <name>hot41</name>
   <price>99</price>
  </goods>
</special>
</shop>
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