php实现的RSS生成类实例
本文实例讲述了php实现的RSS生成类。分享给大家供大家参考。具体如下：
classRSS
{
var$title;
var$link;
var$description;
var$language="en-us";
var$pubDate;
var$items;
var$tags;
functionRSS()
{
$this->items=array();
$this->tags=array();
}
functionaddItem($item)
{
$this->items[]=$item;
}
functionsetPubDate($when)
{
if(strtotime($when)==false)
$this->pubDate=date("D,dMYH:i:s",$when)."GMT";
else
$this->pubDate=date("D,dMYH:i:s",strtotime($when))."GMT";
}
functiongetPubDate()
{
if(empty($this->pubDate))
returndate("D,dMYH:i:s")."GMT";
else
return$this->pubDate;
}
functionaddTag($tag,$value)
{
$this->tags[$tag]=$value;
}
functionout()
{
$out=$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($this->tagsas$key=>$val)$out.="<$key>$val</$key>\n";
foreach($this->itemsas$item)$out.=$item->out();
$out.="</channel>\n";
$out.=$this->footer();
$out=str_replace("&","&",$out);
return$out;
}
functionserve($contentType="application/xml")
{
$xml=$this->out();
header("Content-type:$contentType");
echo$xml;
}
functionheader()
{
$out='<?xmlversion="1.0"encoding="utf-8"?>'."\n";
$out.='<rssversion="2.0"xmlns:dc="http://purl.org/dc/elements/1.1/">'."\n";
return$out;
}
functionfooter()
{
return'</rss>';
}
}
classRSSItem
{
var$title;
var$link;
var$description;
var$pubDate;
var$guid;
var$tags;
var$attachment;
var$length;
var$mimetype;
functionRSSItem()
{
$this->tags=array();
}
functionsetPubDate($when)
{
if(strtotime($when)==false)
$this->pubDate=date("D,dMYH:i:s",$when)."GMT";
else
$this->pubDate=date("D,dMYH:i:s",strtotime($when))."GMT";
}
functiongetPubDate()
{
if(empty($this->pubDate))
returndate("D,dMYH:i:s")."GMT";
else
return$this->pubDate;
}
functionaddTag($tag,$value)
{
$this->tags[$tag]=$value;
}
functionout()
{
$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!="")
$out.="<enclosureurl='{$this->attachment}'length='{$this->length}'type='{$this->mimetype}'/>";
if(empty($this->guid))$this->guid=$this->link;
$out.="<guid>".$this->guid."</guid>\n";
foreach($this->tagsas$key=>$val)$out.="<$key>$val</$key\n>";
$out.="</item>\n";
return$out;
}
functionenclosure($url,$mimetype,$length)
{
$this->attachment=$url;
$this->mimetype=$mimetype;
$this->length=$length;
}
}
使用示例如下：
$feed=newRSS();
$feed->title="RSSFeedTitle";
$feed->link="http://website.com";
$feed->description="Recentarticlesonyourwebsite.";
$db->query($query);
$result=$db->result;
while($row=mysql_fetch_array($result,MYSQL_ASSOC))
{
$item=newRSSItem();
$item->title=$title;
$item->link=$link;
$item->setPubDate($create_date);
$item->description="<![CDATA[$html]]>";
$feed->addItem($item);
}
echo$feed->serve();
希望本文所述对大家的php程序设计有所帮助。