愤怒的大鸟 发表于 2015-2-3 23:58:57

PHP网站制作之利用PHP 5.0 轻松解析XML文档

在学习HTML中我想边学边做是最有效的方式,当然这一方式对于学习PHP同样是最有效的。   用sax体例的时分,要本人构建3个函数,并且要直接用这三的函数来前往数据, 请求较强的逻辑。 在处置分歧布局的XML的时分, 还要从头停止机关这三个函数,费事!
用dom体例,却是好些,然而他把每一个节点都看做是一个node,操作起来要写很多多少的代码, 费事!
网上有很多多少的开源的xml解析的类库, 之前看过几个,然而心里老是感觉不扎实,感到老是跟在他人的屁股前面.
这几天在弄Java, 挺累的,所以决意换换脑壳,写点PHP代码,为了避免今后xml解析进程再令我犯难,就花了一天的工夫写了上面一个xml解析的类,因而就有了上面的器材。
完成体例是经由过程包装"sax体例的解析了局"来完成的. 总的来讲,关于我团体来讲挺适用的,功能也还可以,根基上可以完成大多半的处置请求。
功效:
1、 对根基的xml文件的节点停止 查询 / 添加 / 修正 / 删除 任务.
2、导出xml文件的一切数据到一个数组外面.
3、全部设计采取了oo体例,在操作了局集的时分, 利用办法相似于dom
弱点:
1、 每一个节点最好都带有一个id(看前面的例子), 每一个“节点名字”=“节点的标签_节点的id”,假如这个id值没有设置,法式将主动给他发生一个id,这个id就是这个节点在他的下级节点中的地位编号,从0入手下手。
2、 查询某个节点的时分可以经由过程用“|”符号毗连“节点名字”来停止。这些“节点名字”都是按按次写好的下级节点的名字。
利用申明:
运转上面的例子,在履行了局页面上可以看到函数的利用申明
代码是经由过程php5来完成的,在php4中没法正常运转。
因为方才写完,所以没有收拾整顿文档,上面的例子演示的只是一局部的功效,代码不是很难,如果想晓得更多的功效,可以研讨研讨源代码。
目次布局:
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">好器材保举</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 = $test->getSimpleDocument(); echo "<pre>"; echo "<hr><font color=red>"; echo "上面是经由过程函数getSaveData()前往的全部xml数据的数组"; echo "</font><hr>"; print_r($dom->getSaveData()); echo "<hr><font color=red>"; echo "上面是经由过程setValue()函数,给给根节点添加信息,添加后显示出了局xml文件的内容"; echo "</font><hr>"; $dom->setValue("telphone", "123456789"); echo htmlspecialchars($dom->getSaveXml()); echo "<hr><font color=red>"; echo "上面是经由过程getNode()函数,前往某一个分类下的一切商品的信息"; 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."</font><br>"; print_R($data); print_R($node->getAttribute()); } echo "<hr><font color=red>"; echo "上面是经由过程findNodeByPath()函数,前往某一商品的信息"; 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."</font><br>"; print_R($data); print_R($obj->getAttribute()); } echo "<hr><font color=red>"; echo "上面是经由过程setValue()函数,给商品\"food11\"添加属性, 然后显示添加后的了局"; 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 "上面是经由过程removeValue()/removeAttribute()函数, 给商品\"food11\"改动和删除属性, 然后显示操作后的了局"; 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 "上面是经由过程createNode()函数,添加商品, 然后显示添加后的了局"; 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 "上面是经由过程removeNode()函数,删除商品, 然后显示删除后的了局"; 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)? $name.'_'.$attributes: $name.'_'.$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 = $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 as $attkey=>$attvalue)
$str .= " $attkey=\"$attvalue\"";
$tmpStr = $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);
}
}
?>
上面是例子运转对了局:

上面是经由过程函数getSaveData()前往的全部XML数据的数组

Array
(
=> 华联
=> 北京长安街-9999号
=> 连锁超市
=> Array
(
=> Array
(
=> food
)
=> Array
(
=> food11
=> 12.90
=> Array
(
=> food11
)
)
=> Array
(
=> food12
=> 22.10
=> Array
(
=> 好器材保举
=> Array
(
=> hahawen
)
)
=> Array
(
=> food12
)
)
)
=> Array
(
=> Array
(
=> tel21
=> 1290
=> Array
(
=> tel21
)
)
)
=> Array
(
=> Array
(
=> coat
)
=> Array
(
=> coat31
=> 112
=> Array
(
=> coat31
)
)
=> Array
(
=> coat32
=> 45
=> Array
(
=> coat32
)
)
)
=> Array
(
=> Array
(
=> hot
)
=> Array
(
=> hot41
=> 99
)
)
)

上面是经由过程setValue()函数,给给根节点添加信息,添加后显示出了局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">好器材保举</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>
培训的第一阶段,学习的是HTML/CSS/JavaScript基础。

乐观 发表于 2015-2-4 07:51:29

这些中手常用的知识,当你把我说的这些关键字都可以熟练运用的时候,你可以选择自己

小女巫 发表于 2015-2-4 21:06:14

Ps:以上纯属原创,如有雷同,纯属巧合

若天明 发表于 2015-2-9 15:28:10

因为blog这样的可以让你接触更多要学的知识,可以接触用到类,模板,js ,ajax

海妖 发表于 2015-2-27 05:56:07

不禁又想起那些说php是草根语言的人,为什么认得差距这么大呢。

仓酷云 发表于 2015-3-1 22:29:17

遇到出错的时候,我经常把错误信息直接复制到 google的搜索栏,一般情况都是能搜到结果的,不过有时候会搜出来一大片英文的出来,这时候就得过滤一下,吧中文的弄出来,挨着式方法。

莫相离 发表于 2015-3-11 00:08:55

实践是检验自己会不会的真理。

精灵巫婆 发表于 2015-3-14 22:45:23

遇到出错的时候,我经常把错误信息直接复制到 google的搜索栏,一般情况都是能搜到结果的,不过有时候会搜出来一大片英文的出来,这时候就得过滤一下,吧中文的弄出来,挨着式方法。

飘飘悠悠 发表于 2015-3-21 14:43:11

写js我最烦的就是 ie 和 firefox下同样的代码 结果显示的结果千差万别,还是就是最好不要用遨游去调试,因为有时候遨游是禁用js的,有可能代码是争取结果被遨游折腾的认为是代码写错。

活着的死人 发表于 2015-3-21 20:09:16

这些中手常用的知识,当你把我说的这些关键字都可以熟练运用的时候,你可以选择自己

冷月葬花魂 发表于 2015-3-23 22:50:29

最后祝愿,php会给你带来快乐的同时 你也会给他带来快乐。

分手快乐 发表于 2015-4-5 10:32:55

Apache不是非得用80或者8080端口的,我刚开始安得时候就是80端口老占用,就用了个 81端口,结果照常,就是输localhost的时候,应该输入为 localhost:81

谁可相欹 发表于 2015-4-6 17:01:59

爱上php,他也会爱上你。

变相怪杰 发表于 2015-4-9 02:21:57

兴趣是最好的老师,百度是最好的词典。

不帅 发表于 2015-4-25 03:39:31

最后祝愿,php会给你带来快乐的同时 你也会给他带来快乐。

愤怒的大鸟 发表于 2015-4-29 13:08:33

再就是混迹于论坛啦,咱们的phpchina的论坛就很强大,提出的问题一般都是有达人去解答的,以前的帖子也要多看看也能学到不少前辈们的经验。别的不错的论坛例如php100,javaeye也是很不错的。

蒙在股里 发表于 2015-5-3 02:42:28

最后祝愿,php会给你带来快乐的同时 你也会给他带来快乐。

柔情似水 发表于 2015-5-3 21:24:27

找到的的资料很多都是在论坛里的,需要注册,所以我一般没到一个论坛都注册一个id,所有的id都注册成一样的,这样下次再进来的时候就不用重复注册啦。当然有些论坛的某些资料是需要的付费的。

山那边是海 发表于 2015-5-4 17:28:03

开发工具也会慢慢的更专业,每个公司的可能不一样,但是zend studio是个大伙都会用的。
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