使用PHP 5.0 轻松解析XML文档
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 = '＜?xml version="1.0" encoding="utf-8" ?＞';
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＞
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1670
14
1428
52
1329
25
1274
29
1256
24
Can I open an XML file using PowerPoint?
Feb 19, 2024 pm 09:06 PM
Can XML files be opened with PPT? XML, Extensible Markup Language (Extensible Markup Language), is a universal markup language that is widely used in data exchange and data storage. Compared with HTML, XML is more flexible and can define its own tags and data structures, making the storage and exchange of data more convenient and unified. PPT, or PowerPoint, is a software developed by Microsoft for creating presentations. It provides a comprehensive way of
Convert XML data to CSV format in Python
Aug 11, 2023 pm 07:41 PM
Convert XML data in Python to CSV format XML (ExtensibleMarkupLanguage) is an extensible markup language commonly used for data storage and transmission. CSV (CommaSeparatedValues) is a comma-delimited text file format commonly used for data import and export. When processing data, sometimes it is necessary to convert XML data to CSV format for easy analysis and processing. Python is a powerful
How to handle XML and JSON data formats in C# development
Oct 09, 2023 pm 06:15 PM
How to handle XML and JSON data formats in C# development requires specific code examples. In modern software development, XML and JSON are two widely used data formats. XML (Extensible Markup Language) is a markup language used to store and transmit data, while JSON (JavaScript Object Notation) is a lightweight data exchange format. In C# development, we often need to process and operate XML and JSON data. This article will focus on how to use C# to process these two data formats, and attach
How do you parse and process HTML/XML in PHP?
Feb 07, 2025 am 11:57 AM
This tutorial demonstrates how to efficiently process XML documents using PHP. XML (eXtensible Markup Language) is a versatile text-based markup language designed for both human readability and machine parsing. It's commonly used for data storage an
How to use PHP functions to process XML data?
May 05, 2024 am 09:15 AM
Use PHPXML functions to process XML data: Parse XML data: simplexml_load_file() and simplexml_load_string() load XML files or strings. Access XML data: Use the properties and methods of the SimpleXML object to obtain element names, attribute values, and subelements. Modify XML data: add new elements and attributes using the addChild() and addAttribute() methods. Serialized XML data: The asXML() method converts a SimpleXML object into an XML string. Practical example: parse product feed XML, extract product information, transform and store it into a database.
Using Python to implement data verification in XML
Aug 10, 2023 pm 01:37 PM
Using Python to implement data validation in XML Introduction: In real life, we often deal with a variety of data, among which XML (Extensible Markup Language) is a commonly used data format. XML has good readability and scalability, and is widely used in various fields, such as data exchange, configuration files, etc. When processing XML data, we often need to verify the data to ensure the integrity and correctness of the data. This article will introduce how to use Python to implement data verification in XML and give the corresponding
Parsing XML documents with namespaces using Python
Aug 09, 2023 pm 04:25 PM
Use Python to parse XML documents with namespaces. XML is a commonly used data exchange format that can adapt to various application scenarios. When processing XML documents, sometimes you encounter situations with namespaces. Namespace can prevent the conflict of element names in different XML documents and improve the flexibility and scalability of XML. This article will introduce how to use Python to parse XML documents with namespaces and give corresponding code examples. First, we need to import xml.et
Convert POJO to XML using Jackson library in Java?
Sep 18, 2023 pm 02:21 PM
Jackson is a Java-based library that is useful for converting Java objects to JSON and JSON to Java objects. JacksonAPI is faster than other APIs, requires less memory area, and is suitable for large objects. We use the writeValueAsString() method of the XmlMapper class to convert the POJO to XML format, and the corresponding POJO instance needs to be passed as a parameter to this method. Syntax publicStringwriteValueAsString(Objectvalue)throwsJsonProcessingExceptionExampleimp
