铃木风暴太子150复古:PHP生成RSS类

/**
 * rss操作类
 *
 * FeedCreator class v1.7.2
 * originally (c) Kai Blankenhorn
 * www.bitfolge.de
 * kaib@bitfolge.de
 *
 */

// your local timezone, set to "" to disable or for GMT
define("TIME_ZONE","");

/**
 * Version string.
 **/
define("FEEDCREATOR_VERSION", "www.273.cn");

/**
 * A FeedItem is a part of a FeedCreator feed.
 *
 * @author Kai Blankenhorn <kaib@bitfolge.de>
 * @since 1.3
 */
class FeedItem extends HtmlDescribable {
 /**
  * Mandatory attributes of an item.
  */
 var $title, $description, $link;
 
 /**
  * Optional attributes of an item.
  */
 var $author, $authorEmail, $image, $category, $comments, $guid, $source, $creator;
 
 /**
  * Publishing date of an item. May be in one of the following formats:
  *
  * RFC 822:
  * "Mon, 20 Jan 03 18:05:41 +0400"
  * "20 Jan 03 18:05:41 +0000"
  *
  * ISO 8601:
  * "2003-01-20T18:05:41+04:00"
  *
  * Unix:
  * 1043082341
  */
 var $date;
 
 /**
  * Any additional elements to include as an assiciated array. All $key => $value pairs
  * will be included unencoded in the feed item in the form
  *     <$key>$value
  * Again: No encoding will be used! This means you can invalidate or enhance the feed
  * if $value contains markup. This may be abused to embed tags not implemented by
  * the FeedCreator class used.
  */
 var $additionalElements = Array();

 // on hold
 // var $source;
}

/**
 * An FeedImage may be added to a FeedCreator feed.
 * @author Kai Blankenhorn <kaib@bitfolge.de>
 * @since 1.3
 */
class FeedImage extends HtmlDescribable {
 /**
  * Mandatory attributes of an image.
  */
 var $title, $url, $link;
 
 /**
  * Optional attributes of an image.
  */
 var $width, $height, $description;
}

/**
 * An HtmlDescribable is an item within a feed that can have a description that may
 * include HTML markup.
 */
class HtmlDescribable {
 /**
  * Indicates whether the description field should be rendered in HTML.
  */
 var $descriptionHtmlSyndicated;
 
 /**
  * Indicates whether and to how many characters a description should be truncated.
  */
 var $descriptionTruncSize;
 
 /**
  * Returns a formatted description field, depending on descriptionHtmlSyndicated and
  * $descriptionTruncSize properties
  * @return    string    the formatted description 
  */
 function getDescription() {
  $descriptionField = new FeedHtmlField($this->description);
  $descriptionField->syndicateHtml = $this->descriptionHtmlSyndicated;
  $descriptionField->truncSize = $this->descriptionTruncSize;
  return $descriptionField->output();
 }

}

/**
 * An FeedHtmlField describes and generates
 * a feed, item or image html field (probably a description). Output is
 * generated based on $truncSize, $syndicateHtml properties.
 * @author Pascal Van Hecke <feedcreator.class.php@vanhecke.info>
 * @version 1.6
 */
class FeedHtmlField {
 /**
  * Mandatory attributes of a FeedHtmlField.
  */
 var $rawFieldContent;
 
 /**
  * Optional attributes of a FeedHtmlField.
  *
  */
 var $truncSize, $syndicateHtml;
 
 /**
  * Creates a new instance of FeedHtmlField.
  * @param  $string: if given, sets the rawFieldContent property
  */
 function FeedHtmlField($parFieldContent) {
  if ($parFieldContent) {
   $this->rawFieldContent = $parFieldContent;
  }
 }
  
  
 /**
  * Creates the right output, depending on $truncSize, $syndicateHtml properties.
  * @return string    the formatted field
  */
 function output() {
  // when field available and syndicated in html we assume
  // - valid html in $rawFieldContent and we enclose in CDATA tags
  // - no truncation (truncating risks producing invalid html)
  if (!$this->rawFieldContent) {
   $result = "";
  } elseif ($this->syndicateHtml) {
   $result = "rawFieldContent."]]>";
  } else {
   if ($this->truncSize and is_int($this->truncSize)) {
    $result = FeedCreator::iTrunc(htmlspecialchars($this->rawFieldContent),$this->truncSize);
   } else {
    $result = htmlspecialchars($this->rawFieldContent);
   }
  }
  return $result;
 }

}

/**
 * UniversalFeedCreator lets you choose during runtime which
 * format to build.
 * For general usage of a feed class, see the FeedCreator class
 * below or the example above.
 *
 * @since 1.3
 * @author Kai Blankenhorn <kaib@bitfolge.de>
 */
class UniversalFeedCreator extends FeedCreator {
 var $_feed;
 
 function _setFormat($format) {
  switch (strtoupper($format)) {
   
   case "2.0":
    // fall through
   case "RSS2.0":
    $this->_feed = new RSSCreator20();
    break;
   
   case "0.91":
    // fall through
   case "RSS0.91":
    $this->_feed = new RSSCreator091();
    break;
   
   default:
    $this->_feed = new RSSCreator091();
    break;
  }
       
  $vars = get_object_vars($this);
  foreach ($vars as $key => $value) {
   // prevent overwriting of properties "contentType", "encoding"; do not copy "_feed" itself
   if (!in_array($key, array("_feed", "contentType", "encoding"))) {
    $this->_feed->{$key} = $this->{$key};
   }
  }
 }
 
 /**
  * Creates a syndication feed based on the items previously added.
  *
  * @see        FeedCreator::addItem()
  * @param    string    format    format the feed should comply to. Valid values are:
  *   "PIE0.1", "mbox", "RSS0.91", "RSS1.0", "RSS2.0", "OPML", "ATOM0.3", "HTML", "JS"
  * @return    string    the contents of the feed.
  */
 function createFeed($format = "RSS0.91") {
  $this->_setFormat($format);
  return $this->_feed->createFeed();
 }
 
 
 
 /**
  * Saves this feed as a file on the local disk. After the file is saved, an HTTP redirect
  * header may be sent to redirect the use to the newly created file.
  * @since 1.4
  *
  * @param string format format the feed should comply to. Valid values are:
  *   "PIE0.1" (deprecated), "mbox", "RSS0.91", "RSS1.0", "RSS2.0", "OPML", "ATOM", "ATOM0.3", "HTML", "JS"
  * @param string filename optional the filename where a recent version of the feed is saved. If not specified, the filename is $_SERVER["PHP_SELF"] with the extension changed to .xml (see _generateFilename()).
  * @param boolean displayContents optional send the content of the file or not. If true, the file will be sent in the body of the response.
  */
 function saveFeed($format="RSS0.91", $filename="", $displayContents=true) {
  $this->_setFormat($format);
  $this->_feed->saveFeed($filename, $displayContents);
 }

   /**
    * Turns on caching and checks if there is a recent version of this feed in the cache.
    * If there is, an HTTP redirect header is sent.
    * To effectively use caching, you should create the FeedCreator object and call this method
    * before anything else, especially before you do the time consuming task to build the feed
    * (web fetching, for example).
    *
    * @param   string   format   format the feed should comply to. Valid values are:
    *       "PIE0.1" (deprecated), "mbox", "RSS0.91", "RSS1.0", "RSS2.0", "OPML", "ATOM0.3".
    * @param filename   string   optional the filename where a recent version of the feed is saved. If not specified, the filename is $_SERVER["PHP_SELF"] with the extension changed to .xml (see _generateFilename()).
    * @param timeout int      optional the timeout in seconds before a cached version is refreshed (defaults to 3600 = 1 hour)
    */
   function useCached($format="RSS0.91", $filename="", $timeout=3600) {
      $this->_setFormat($format);
      $this->_feed->useCached($filename, $timeout);
   }

}

/**
 * FeedCreator is the abstract base implementation for concrete
 * implementations that implement a specific format of syndication.
 *
 * @abstract
 * @author Kai Blankenhorn <kaib@bitfolge.de>
 * @since 1.4
 */
class FeedCreator extends HtmlDescribable {

 /**
  * Mandatory attributes of a feed.
  */
 var $title, $description, $link;
 
 
 /**
  * Optional attributes of a feed.
  */
 var $syndicationURL, $image, $language, $copyright, $pubDate, $lastBuildDate, $editor, $editorEmail, $webmaster, $category, $docs, $ttl, $rating, $skipHours, $skipDays;

 /**
 * The url of the external xsl stylesheet used to format the naked rss feed.
 * Ignored in the output when empty.
 */
 var $xslStyleSheet = "";
 
 
 /**
  * @access private
  */
 var $items = Array();
  
 
 /**
  * This feed's MIME content type.
  * @since 1.4
  * @access private
  */
 var $contentType = "application/xml";
 
 
 /**
  * This feed's character encoding.
  * @since 1.6.1
  **/
 var $encoding = "utf-8";
 
 
 /**
  * Any additional elements to include as an assiciated array. All $key => $value pairs
  * will be included unencoded in the feed in the form
  *     <$key>$value
  * Again: No encoding will be used! This means you can invalidate or enhance the feed
  * if $value contains markup. This may be abused to embed tags not implemented by
  * the FeedCreator class used.
  */
 var $additionalElements = Array();
  
   
 /**
  * Adds an FeedItem to the feed.
  *
  * @param object FeedItem $item The FeedItem to add to the feed.
 ====================================================================================

使用：
include_once('Rss.class.php');
$rss = new UniversalFeedCreator();
$rss->title = "PHP开源项目";
$rss->link = "http://www.coderhome.net";
$rss->description = "最全最新最丰富的PHP开源项目";
$softList = $query->select('select * from soft_list where status=1 order by id desc','array',1,100);
foreach ($softList as $rs) {
$item = new FeedItem();
$item->title = $rs['title'];
$item->link = 'http://www.coderhome.net/?id='.$rs['id'];
$item->description = $rs['content'];
$rss->addItem($item);
}
$rss->saveFeed("RSS2.0", "rss.xml");