topical media & game development
[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

talk show tell print

professional-search-07-seophp-include-rss-factory.inc.php / php



  <?php
  
  // load social bookmarking helper class
  require_once 'social_bookmarking.inc.php';
  
  class RSSFactory 
  { 
    var _title; 
    var _link; 
    var _description; 
    var _language; 
    var _items; 
     
    // escape string characters for inclusion in XML structure
    function _escapeXML(str)
    {
      translation = get_html_translation_table(HTML_ENTITIES, ENT_QUOTES); 
      foreach (translation as key => value) 
      {
        translation[key] = '&#' . ord(key) . ';'; 
      }
      translation[chr(38)] = '&';   
      return preg_replace("/&(?![A-Za-z]{0,4}\w{2,3};|#[0-9]{2,3};)/","&#38;", 
                          strtr(str, translation)); 
    } 
  
    // the class constructor is executed when creating an instance of the class
    function RSSFactory(title, link, description, 
                        language = 'en-us', items = array())  
    { 
      // save feed data to local class members
      this->_title = title; 
      this->_link = link; 
      this->_description = description; 
      this->_language = language; 
      this->_items = items; 
    } 
     
    // adds a new feed item
    function addItem(title, link, description, additional_fields = array()) 
    { 
      // add feed item
      this->_items[] = 
        array_merge(array('title' => title, 
                          'link' => link, 
                          'description' => description), 
                    additional_fields); 
    } 
     
    // generates feed
    function get() 
    {
      // initial preparations
      ob_start(); 
      header('Content-type: text/xml'); 
     
      // generate feed header
      echo '<rss version="2.0">' . 
           '<channel>' . 
             '<title>' . RSSFactory::_escapeXML(this->_title) . '</title>' . 
             '<link>' . RSSFactory::_escapeXML(this->_link) . '</link>' .
             '<description>' . 
               RSSFactory::_escapeXML(this->_description) . 
             '</description>';
  
      // add feed items
      foreach (this->_items as feed_item)
      {
        // add a feed item and its contents
        echo '<item>';
        foreach (feed_item as item_name => item_value) 
        { 
          // add social bookmarking icons to feed description 
          if (item_name == 'description')
          {
            // instantiate class by providing link, title, and site name
            social = new SocialBookmarking(feed_item['link'], 
                                            feed_item['title'],
                                            this->_title); 
  
            // add social bookmarking icons to the feed
            item_value = item_value . social->getFeedHTML();
          }
  
          // output feed item
          echo "<item_name>" . 
                 RSSFactory::_escapeXML(item_value) . 
               "</item_name>"; 
        }        
        echo '</item>';
      }
  
      // close channel and rss elements
      echo '</channel></rss>';
  
      // return feed data
      return ob_get_clean();
    }
  }
  
  ?>
[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

(C) Æliens 20/2/2008

You may not copy or print any of this material without explicit permission of the author or the publisher. In case of other copyright issues, contact the author.