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php·Î ÀÛ¼ºÇÑ °£´Ü RSS2.0 ¸®´õ
12³â Àü
¼Ò½º´Â PHP5·Î ÀÛ¼ºÇß°í, ³»ÀåµÈ SAX Æļ­¸¦ ÀÌ¿ëÇß½À´Ï´Ù.
SAXÆļ­´Â À̺¥Æ® ±â¹Ý Æļ­¶ó¼­ ±¸Çöµµ °£´ÜÇÏ°í, ¼Óµµµµ ºü¸¨´Ï´Ù.

RSS´Â ÇöÀç °¡Àå ³Î¸® ¾²ÀÌ´Â RSS 2.0À» ´ë»óÀ¸·Î Çß½À´Ï´Ù.
À̱۷罺¿Í Å×Å͵µ RSS 2.0À» Áö¿øÇÏ°í ÀÖ½À´Ï´Ù.

¿Ï¼ºµÈ ¼Ò½º ÀÚü´Â °£´ÜÇѵ¥, Á¦°¡ PHP¸¦ óÀ½ ´Ù·ïºÁ¼­ ½ÃÇàÂø¿À¸¦ ¸¹ÀÌ °ÅÃƽÀ´Ï´Ù. »ç½Ç Áö±Ýµµ PHPÀÇ ¹®¹ý°ú ¶óÀ̺귯¸®¸¦ ¿ÏÀüÈ÷ ¼÷ÁöÇÑ »óÅ°¡ ¾Æ´Ï¶ó¼­, ¼Ò½º ÀÚüµµ ±×¸® ±ò²ûÇÏ´Ù°í´Â ¸» ¸øÇÏ°Ú½À´Ï´Ù.

¿©±â °ø°³µÈ ¼Ò½º´Â Á¦°¡ ÀÛ¾÷ÇÑ °ÍÀ» Àû´çÈ÷ °£Ã߸° °ÍÀÔ´Ï´Ù.

rss_fetch.php

<?php

include_once 'lib.php';

  //°¡Á®¿Ã RSS ÁÖ¼Ò¸¦ ÁöÁ¤ÇϸéµË´Ï´Ù.
$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);

           //Æļ­ »ý¼º
           $rss = new RSSParser;

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

          $rss = NULL;
     endif;
endforeach;

?>



lib.php

<?php

function rssParse($rss_obj)
{  
      //³»Àå XML Æļ­ »ý¼º
     $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 Æļ­¿¡ À̺¥Æ® Çڵ鷯¸¦ ÇÒ´ç
     xml_set_element_handler($xml_parser, "startElement", "endElement");
     xml_set_character_data_handler($xml_parser, "characterData");

      //XML ÆĽÌ
     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;
     }

     //űװ¡ ½ÃÀÛÇÏ´Â ºÎºÐ¿¡¼­ ó¸®ÇÒ ³»¿ë  
     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();        // ÀúÀåµÈ Æ÷½ºÆ®¸¦ Ãâ·ÂÇϰųª DB·Î ÀÚÀåÇÏ¸é µÊ.
                     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; //¹Ýµå½Ã .= ¿¬»êÀÚ¸¦ ½á¾ßÇÔ!
                      break;

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

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

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

      //¿©±â¼­´Â ¹Ù·Î Ãâ·ÂÀ» ÇÏÁö¸¸, DB¿¡ ÀúÀåÇÏ´Â ¹æ½ÄÀ¸·Î ±¸ÇöÇÒ ¼öµµ ÀÖ½À´Ï´Ù.
      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

?>



RSS ¸®´õ¸¦ ¸¸µé ¶§ÀÇ ÁÖÀÇ»çÇ×

1. RSS´Â UTF-8·Î ÀÎÄÚµùµÇ¾î ÀÖ½À´Ï´Ù. µû¶ó¼­ RSSÀÇ µ¥ÀÌÅ͸¦ º¯È¯¾øÀÌ ±×³É À¥ÆäÀÌÁö¿¡ »Ñ¸®·Á¸é, À¥ÆäÀÌÁö ¿ª½Ã UTF-8·Î ÀÎÄÚµùµÇ¾î ÀÖ¾î¾ß ÇÕ´Ï´Ù. Àú´Â ¸ðµç ÀÛ¾÷ ÆÄÀϵé(PHP, HTML, TXT)À» ÀüºÎ UTF-8·Î ÅëÀÏÇß½À´Ï´Ù.

2. RSSÀÇ PubDate ű״ °Ô½Ã¹°ÀÇ ³¯Â¥¸¦ ´ã°í ÀÖ´Â Å×±×ÀÌÁö¸¸, ¹®Á¦´Â ÀÌ°ÍÀÌ GMT ½Ã°£ÀÔ´Ï´Ù. À¥¿¡ °Ô½ÃÇÒ¶§´Â ÇöÁö(Çѱ¹) ½Ã°£À¸·Î º¯È¯ÇØ¾ß ÇÒ °ÍÀÔ´Ï´Ù.

¡Ø Ãß°¡ »çÇ×

Á¦°¡ Âü°íÇÑ °ÍÀº À̱۷罺¿Í Å×ÅÍÀÇ RSSÀÔ´Ï´Ù.
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