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| 使用PHP 5.0 轻松解析XML文档 (2) |
| 作者：不详 来源：不详 发布时间：2006-8-14 10:20:13 发布人：chinazhan |
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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);
}
}
?＞
做人要厚道，请注明转自chinazhan中国站长(www.ChinaZhan.com)。
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