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【PHP】 RSS生成类

作者:Dezai.CN / 发布于2013/7/1/ 503


	/* E X A M P L E -----------------------------------------------
	 $feed = new RSS();
	 $feed->title = "RSS Feed Title";
	 $feed->link = "http://website.com";
	 $feed->description = "Recent articles on your website.";

	 $db->query($query);
	 $result = $db->result;
	 while($row = mysql_fetch_array($result, MYSQL_ASSOC))
	 {
	 $item = new RSSItem();
	 $item->title = $title;
	 $item->link = $link;
	 $item->setPubDate($create_date);
	 $item->description = "<![CDATA[ $html ]]>";
	 $feed->addItem($item);
	 }
	 echo $feed->serve();
	 ---------------------------------------------------------------- */

	 class RSS
	 {
	 var $title;
	 var $link;
	 var $description;
	 var $language = "en-us";
	 var $pubDate;
	 var $items;
	 var $tags;

	 function RSS()
	 {
	 $this->items = array();
	 $this->tags = array();
	 }

	 function addItem($item)
	 {
	 $this->items[] = $item;
	 }

	 function setPubDate($when)
	 {
	 if(strtotime($when) == false)
	 $this->pubDate = date("D, d M Y H:i:s ", $when) . "GMT";
	 else
	 $this->pubDate = date("D, d M Y H:i:s ", strtotime($when)) . "GMT";
	 }

	 function getPubDate()
	 {
	 if(empty($this->pubDate))
	 return date("D, d M Y H:i:s ") . "GMT";
	 else
	 return $this->pubDate;
	 }

	 function addTag($tag, $value)
	 {
	 $this->tags[$tag] = $value;
	 }

	 function out()
	 {
	 $out = $this->header();
	 $out .= "<channel>\n";
	 $out .= "<title>" . $this->title . "</title>\n";
	 $out .= "<link>" . $this->link . "</link>\n";
	 $out .= "<description>" . $this->description . "</description>\n";
	 $out .= "<language>" . $this->language . "</language>\n";
	 $out .= "<pubDate>" . $this->getPubDate() . "</pubDate>\n";

	 foreach($this->tags as $key => $val) $out .= "<$key>$val</$key>\n";
	 foreach($this->items as $item) $out .= $item->out();

	 $out .= "</channel>\n";

	 $out .= $this->footer();

	 $out = str_replace("&", "&amp;", $out);

	 return $out;
	 }

	 function serve($contentType = "application/xml")
	 {
	 $xml = $this->out();
	 header("Content-type: $contentType");
	 echo $xml;
	 }

	 function header()
	 {
	 $out = '<?xml version="1.0" encoding="utf-8"?>' . "\n";
	 $out .= '<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/">' . "\n";
	 return $out;
	 }

	 function footer()
	 {
	 return '</rss>';
	 }
	 }

	 class RSSItem
	 {
	 var $title;
	 var $link;
	 var $description;
	 var $pubDate;
	 var $guid;
	 var $tags;
	 var $attachment;
	 var $length;
	 var $mimetype;

	 function RSSItem()
	 {
	 $this->tags = array();
	 }

	 function setPubDate($when)
	 {
	 if(strtotime($when) == false)
	 $this->pubDate = date("D, d M Y H:i:s ", $when) . "GMT";
	 else
	 $this->pubDate = date("D, d M Y H:i:s ", strtotime($when)) . "GMT";
	 }

	 function getPubDate()
	 {
	 if(empty($this->pubDate))
	 return date("D, d M Y H:i:s ") . "GMT";
	 else
	 return $this->pubDate;
	 }

	 function addTag($tag, $value)
	 {
	 $this->tags[$tag] = $value;
	 }

	 function out()
	 {
	 $out .= "<item>\n";
	 $out .= "<title>" . $this->title . "</title>\n";
	 $out .= "<link>" . $this->link . "</link>\n";
	 $out .= "<description>" . $this->description . "</description>\n";
	 $out .= "<pubDate>" . $this->getPubDate() . "</pubDate>\n";

	 if($this->attachment != "")
	 $out .= "<enclosure url='{$this->attachment}' length='{$this->length}' type='{$this->mimetype}' />";

	 if(empty($this->guid)) $this->guid = $this->link;
	 $out .= "<guid>" . $this->guid . "</guid>\n";

	 foreach($this->tags as $key => $val) $out .= "<$key>$val</$key\n>";
	 $out .= "</item>\n";
	 return $out;
	 }

	 function enclosure($url, $mimetype, $length)
	 {
	 $this->attachment = $url;
	 $this->mimetype = $mimetype;
	 $this->length = $length;
	 }
	 }

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