用sax方式的時候,要自己構(gòu)建3個函數(shù)，而且要直接用這三的函數(shù)來返回數(shù)據(jù), 要求較強(qiáng)的邏輯。 在處理不同結(jié)構(gòu)的xml的時候, 還要重新進(jìn)行構(gòu)造這三個函數(shù)，麻煩!

用dom方式,倒是好些,但是他把每個節(jié)點(diǎn)都看作是一個node，操作起來要寫好多的代碼, 麻煩!

網(wǎng)上有好多的開源的xml解析的類庫, 以前看過幾個，但是心里總是覺得不踏實(shí)，感覺總是跟在別人的屁股后面.

這幾天在搞java, 挺累的，所以決定換換腦袋，寫點(diǎn)php代碼，為了防止以后xml解析過程再令我犯難，就花了一天的時間寫了下面一個xml解析的類，于是就有了下面的東西。

實(shí)現(xiàn)方式是通過包裝"sax方式的解析結(jié)果"來實(shí)現(xiàn)的. 總的來說，對于我個人來說挺實(shí)用的，性能也還可以，基本上可以完成大多數(shù)的處理要求。

功能:

1、 對基本的xml文件的節(jié)點(diǎn)進(jìn)行 查詢 / 添加 / 修改 / 刪除 工作.

2、導(dǎo)出xml文件的所有數(shù)據(jù)到一個數(shù)組里面.

3、整個設(shè)計采用了oo方式,在操作結(jié)果集的時候, 使用方法類似于dom

缺點(diǎn):

1、 每個節(jié)點(diǎn)最好都帶有一個id(看后面的例子), 每個“節(jié)點(diǎn)名字”=“節(jié)點(diǎn)的標(biāo)簽_節(jié)點(diǎn)的id”，如果這個id值沒有設(shè)置，程序?qū)⒆詣咏o他產(chǎn)生一個id，這個id就是這個節(jié)點(diǎn)在他的上級節(jié)點(diǎn)中的位置編號，從0開始。

2、 查詢某個節(jié)點(diǎn)的時候可以通過用“|”符號連接“節(jié)點(diǎn)名字”來進(jìn)行。這些“節(jié)點(diǎn)名字”都是按順序?qū)懞玫纳霞壒?jié)點(diǎn)的名字。

使用說明：

運(yùn)行下面的例子，在執(zhí)行結(jié)果頁面上可以看到函數(shù)的使用說明

代碼是通過php5來實(shí)現(xiàn)的，在php4中無法正常運(yùn)行。

由于剛剛寫完，所以沒有整理文檔，下面的例子演示的只是一部分的功能，代碼不是很難，要是想知道更多的功能，可以研究研究源代碼。

目錄結(jié)構(gòu):

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＞華聯(lián)＜/name＞ ＜address＞北京長安街－9999號＜/address＞ ＜desc＞連鎖超市＜/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"＞好東西推薦＜/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 = $test-＞getsimpledocument(); echo "＜pre＞"; echo "＜hr＞＜font color=red＞"; echo "下面是通過函數(shù)getsavedata()返回的整個xml數(shù)據(jù)的數(shù)組"; echo "＜/font＞＜hr＞"; print_r($dom-＞getsavedata()); echo "＜hr＞＜font color=red＞"; echo "下面是通過setvalue()函數(shù)，給給根節(jié)點(diǎn)添加信息，添加后顯示出結(jié)果xml文件的內(nèi)容"; echo "＜/font＞＜hr＞"; $dom-＞setvalue("telphone", "123456789"); echo htmlspecialchars($dom-＞getsavexml()); echo "＜hr＞＜font color=red＞"; echo "下面是通過getnode()函數(shù)，返回某一個分類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 "下面是通過findnodebypath()函數(shù)，返回某一商品的信息"; echo "＜/font＞＜hr＞"; $obj = $dom-＞findnodebypath("cat_food|goods_food11"); if(!is_object($obj)){ echo "該商品不存在"; }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 "下面是通過setvalue()函數(shù)，給商品/"food11/"添加屬性, 然后顯示添加后的結(jié)果"; echo "＜/font＞＜hr＞"; $obj = $dom-＞findnodebypath("cat_food|goods_food11"); $obj-＞setvalue("leaveword", array("value"=＞"這個商品不錯", "attrs"=＞array("author"=＞"hahawen", "date"=＞date('y-m-d')))); echo htmlspecialchars($dom-＞getsavexml()); echo "＜hr＞＜font color=red＞"; echo "下面是通過removevalue()/removeattribute()函數(shù)， 給商品/"food11/"改變和刪除屬性, 然后顯示操作后的結(jié)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 "下面是通過createnode()函數(shù)，添加商品, 然后顯示添加后的結(jié)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 "下面是通過removenode()函數(shù)，刪除商品, 然后顯示刪除后的結(jié)果"; echo "＜/font＞＜hr＞"; $obj = $dom-＞findnodebypath("cat_food"); $obj-＞removenode("goods_food12"); echo htmlspecialchars($dom-＞getsavexml()); ?＞

文件:simpledocumentparser.php

＜?php

/**

*=========================================================

*

* @author hahawen(大齡青年)

* @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(大齡青年)

* @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(大齡青年)

* @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(大齡青年)

* @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);

}

}

?＞

下面是例子運(yùn)行對結(jié)果:

下面是通過函數(shù)getsavedata()返回的整個xml數(shù)據(jù)的數(shù)組

array

(

[name] =＞ 華聯(lián)

[address] =＞ 北京長安街－9999號

[desc] =＞ 連鎖超市

[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] =＞ 好東西推薦

[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

)

)

)

下面是通過setvalue()函數(shù)，給給根節(jié)點(diǎn)添加信息，添加后顯示出結(jié)果xml文件的內(nèi)容

＜?xml version="1.0" encoding="gb2312" ?＞

＜shop＞

＜name＞華聯(lián)＜/name＞

＜address＞北京長安街－9999號＜/address＞

＜desc＞連鎖超市＜/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"＞好東西推薦＜/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＞