使用PHP 5.0 轻松解析XML文档（2）

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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); }}?＞      

＜?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;    }    pub