xml_class来自 phpcms

<?php

class xml{
 var $parser;
 var $document;
 var $stack;
 var $data;
 var $last_opened_tag;
 var $isnormal;
 var $attrs=array();
 var $failed=false;
 function __construct($isnormal){
  $this->XMLparse($isnormal);
 }
 function XMLparse($isnormal){
  $this->isnormal=$isnormal;
  $this->parser=xml_parser_create('ISO-8859-1');
  xml_parser_set_option($this->parser,XML_OPTION_CASE_FOLDING,false);
  xml_set_object($this->parser,$this);
  xml_set_element_handler($this->parser,'open','close');
  xml_set_character_data_handler($this->parser,'data');
 }
 function destruct(){
  xml_parser_free($this->parser);
 }
 function parse(&$data){
  $this->document=array();
  $this->stack=array();
  return xml_parse($this->parser,$data,true)&&!$this->failed?$this->document:'';
 }
 function open(&$parser,$tag,$attributes){
  $this->data='';
  $this->failed=false;
  if(!$this->isnormal){
   if(isset($attributes['id'])&&!is_string($this->document[$attributes['id']])){
    $this->document=&$this->document[$attributes['id']];
   }else{
    $this->failed=true;
   }
  }else{
   if(!isset($this->document[$tag])||!is_string($this->document[$tag])){
    $this->document=&$this->document[$tag];
   }else{
    $this->failed=true;
   }
  }
  $this->stack[]=&$this->document;
  $this->last_opened_tag=$tag;
  $this->attrs=$attributes;
 }
 function data(&$parser,$data){
  if($this->last_opened_tag!=null){
   $this->data.=$data;
  }
 }
 function close(&$parser,$tag){
  if($this->last_opened_tag==$tag){
   $this->document=$this->data;
   $this->last_opened_tag=null;
  }
  array_pop($this->stack);
  if($this->stack){
   $this->document=&$this->stack[count($this->stack)-1];
  }
 }
}
?>