PHP로 만든 RSS 2.0 리더 소스

<?php

 include_once 'lib.php';

  //가져올 RSS 주소를 지정하면됩니다. 
$urls = array('http://sizuha.egloos.com/index.xml', 'http://kori2sal.innori.com/rss');

 foreach ($urls as $url):
     $handle = fopen($url, 'r');

     if ($handle):
          $document = '';

          while (!feof($handle))
               $document .= fgets($handle, 4096); 

          fclose($handle);

           //파서 생성
           $rss = new RSSParser;

           //파싱
          $rss->setRSS($document);
          rssParse($rss);

          $rss = NULL;
     endif;
endforeach;

?> 

<?php

 function rssParse($rss_obj)
 {  
      //내장 XML 파서 생성
     $xml_parser = xml_parser_create('UTF-8');
  
     xml_set_object($xml_parser, $rss_obj);   
     xml_parser_set_option($xml_parser, XML_OPTION_CASE_FOLDING, FALSE);

      //XML 파서에 이벤트 핸들러를 할당
     xml_set_element_handler($xml_parser, "startElement", "endElement");
     xml_set_character_data_handler($xml_parser, "characterData");

      //XML 파싱
     xml_parse($xml_parser, $rss_obj->getRSS());
     xml_parser_free($xml_parser);
 }


 class RSSParser
{
     private $rss_doc;
 
     private $current_element;
     private $in_item = FALSE;
     private $in_description = FALSE;
     private $title;
     private $date;
     private $link;
     private $category;
     private $content;

 
     function setRSS($rss_text)
     {
          $this->rss_doc = $rss_text;
     }
 
     function getRSS()
     {
          return $this->rss_doc;
     }

     //태그가 시작하는 부분에서 처리할 내용  
     function startElement($parser, $element, $attrs)
     {
          if ($this->in_description) return;    

          $this->current_element = strtoupper($element);
  
          switch ($this->current_element):
               case 'ITEM' :
                    $this->in_item = TRUE;
                    break;

               case 'DESCRIPTION' :
                    if ($this->in_item) {
                         $this->in_description = TRUE;
                         $this->content = '';
                    }
                    break;
    
               default: 
                    break;     
          endswitch;
     }
 
     function endElement($parser, $element)
     {
          $el = strtoupper($element);

          if ($this->in_description and 'DESCRIPTION' != $el) return;

          switch (strtoupper($el)):
               case 'ITEM' :
                    $this->in_item = FALSE;
                    $this->printItem();        // 저장된 포스트를 출력하거나 DB로 자장하면 됨.
                     break;

               case 'DESCRIPTION' :
                    if ($this->in_item) {
                         $this->in_description = FALSE;
                    } 
                    break;

               default: 
                    break;     
          endswitch;

          $this->current_element = '';
     }
 
     function characterData($parser, $data)
     {   
          if ('' == trim($data)) return; 
 
          if ($this->in_item):
   
           switch ($this->current_element):
                case 'TITLE' :
                     $this->title = $data;
                     break;

                case 'DESCRIPTION' :
                     $this->content .= $data; //반드시 .= 연산자를 써야함!
                      break;

                case 'CATEGORY' :
                     $this->category = $data;     
                     break;

                case 'PUBDATE' :
                     $this->date = $data;
                     break;

                case 'LINK' :
                     $this->link = $data;
                     break;
           endswitch;   
    
          endif;
     }      

      //여기서는 바로 출력을 하지만, DB에 저장하는 방식으로 구현할 수도 있습니다.
      private function printItem()
     {
          echo "<P><STRONG>";
          echo $this->title;
          echo "</STRONG>";
   
          echo "  (";
          echo $this->date.")</P>";
   
          echo $this->content;
          echo "<BR>";
          echo $this->category." | ";
          echo $this->link;
  
          echo "<br><br>";
     }
   
 }//end of class

?>