PHP生成RSS订阅的程序代码

生成RSS非常的简单只需要使用rss格式然后生成输出到浏览器就可以了,重点就是要告诉浏览器你是rss格式的数据即可,具体来看个例子.

rss（简易信息聚合也叫聚合内容）是一种描述和同步网站内容的格式,下面的生成RSS订阅的代码.

rss XML结构.

1. <?xml version="1.0" encoding="utf-8"?> 
2. <rss version="2.0"> 
3. <channel> 
4. <title>网站名称</title> 
5. <link>http://www.Vevb.com/</link> 
6. <description>网站描述!</description> 
7. <item> 
8. <title>RSS Tutorial</title> 
9. <link>网站地址/rss</link> 
10. <description>New RSS tutorial on W3School</description> 
11. </item> 
12. <item> 
13. <title>XML Tutorial</title> 
14. <link>网站地址/xml</link> 
15. <description>New XML tutorial on W3School</description> 
16. </item> 
17. </channel> 
18. </rss> 

RSS实例

1. <?php 
2. class Rss { 
3. public function createFeed() { 
4. //RSS头部 
5. $webUrl = 'http://'.$_SERVER['HTTP_HOST'];//网站地址 
6. $webName = '网站名称';    //网站名称 
7. $webDesc = '网站描述';    //网站描述 
8. $html = '<?xml version="1.0" encoding="utf-8"?> 
9. <rss version="2.0"> 
10. <channel> 
11. <title>'.$webName.'</title> 
12. <link>'.$webUrl.'</link> 
13. <description>'.$webDesc.'</description> 
14. '.$this->createItem().' 
15. </channel> 
16. </rss> 
17. '; 
18. echo $html; 
19. } 
20. private function createItem() { 
21. //RSS item 
22. //$data可替换为自己的数据 
23. $html = ''; 
24. //文章数据 
25. $data = array( 
26. 'id' => 1, 
27. 'date' => date('r', time()), 
28. 'title' => '文章标题', 
29. 'link' => 'http://www.Vevb.com',    //文章地址 
30. 'description' => '网站描述' 
31. ); 
32. for($i = 0; $i < 6; $i++) { 
33. $html .= ' 
34. <item> 
35. <title>'.$data['title'].'</title> 
36. <link>'.$data['link'].'</link> 
37. <pubDate>'.$data['date'].'</pubDate> 
38. <description><![CDATA['.$data['description'].']]></description> 
39. </item> 
40. '; 
41. } 
42. return $html; 
43. } 
44. } 
45. header("Content-Type: text/xml; charset=utf-8"); 
46. $rss = new Rss(); 
47. $rss->createFeed(); 
48. exit; 
49. ?> 

RSS Feed 生成后，如何设置才能给网站添加 RSS 呢？并且让 Firefox、IE7 或其它 Feed 机器人自动发现？很简单，在网页的 Head 节添加一个特定的 Link 标签即可，如下:

1. <link rel=”alternate” type=”application/rss+xml” title=”网站名称 RSS Feed” href=”http://www.Vevb.com” /> 

设置 title 为 Feed 标题,href 为 Feed 地址,一切就 OK 了.

例子2:

1. <?xml version="1.0" encoding="utf-8"?> 
2.  
3. <rss version="2.0"> 
4.  
5. <channel> 
6.  
7. <title>php程序员教程网</title> 
8.  
9. <link>http://www.Vevb.com/</link> 
10.  
11. <description>本站是一个php程序员的工作生活笔记!</description> 
12.  
13. <item> 
14.  
15. <title>RSS Tutorial</title> 
16.  
17. <link>网站地址/rss</link> 
18.  
19. <description>New RSS tutorial on W3School</description> 
20.  
21. </item> 
22.  
23. <item> 
24.  
25. <title>XML Tutorial</title> 
26.  
27. <link>网站地址/xml</link> 
28.  
29. <description>New XML tutorial on W3School</description> 
30.  
31. </item> 
32.  
33. </channel> 
34.  
35. </rss> 

下面分享一段使用 php 动态生成 RSS 的代码示例:

1. <?php 
2. /** 
3. ** php 动态生成 RSS 类 
4. **/ 
5. define("TIME_ZONE",""); 
6. define("FEEDCREATOR_VERSION","www.Vevb.com");//您的网址 
7. class FeedItem extends HtmlDescribable{ 
8.  var $title,$description,$link; 
9.  var $author,$authorEmail,$image,$category,$comments,$guid,$source,$creator; 
10.  var $date; 
11.  var $additionalElements=Array(); 
12. } 
13. class FeedImage extends HtmlDescribable{ 
14.  var $title,$url,$link; 
15.  var $width,$height,$description; 
16. } 
17. class HtmlDescribable{ 
18.  var $descriptionHtmlSyndicated; 
19.  var $descriptionTruncSize; 
20.  function getDescription(){ 
21.   $descriptionField=new FeedHtmlField($this->description); 
22.   $descriptionField->syndicateHtml=$this->descriptionHtmlSyndicated; 
23.   $descriptionField->truncSize=$this->descriptionTruncSize; 
24.   return $descriptionField->output(); 
25.  } 
26. } 
27. class FeedHtmlField{ 
28.  var $rawFieldContent; 
29.  var $truncSize,$syndicateHtml; 
30.  function FeedHtmlField($parFieldContent){ 
31.   if($parFieldContent){ 
32.    $this->rawFieldContent=$parFieldContent; 
33.   } 
34.  } 
35.  function output(){ 
36.   if(!$this->rawFieldContent){ 
37.    $result=""; 
38.   }    elseif($this->syndicateHtml){ 
39.    $result="<![CDATA[".$this->rawFieldContent."]]>"; 
40.   }else{ 
41.    if($this->truncSize and is_int($this->truncSize)){ 
42.     $result=FeedCreator::iTrunc(htmlspecialchars($this->rawFieldContent),$this->truncSize); 
43.    }else{ 
44.     $result=htmlspecialchars($this->rawFieldContent); 
45.    } 
46.   } 
47.   return $result; 
48.  } 
49. } 
50. class UniversalFeedCreator extends FeedCreator{ 
51.  var $_feed; 
52.  function _setFormat($format){ 
53.   switch (strtoupper($format)){ 
54.    case "2.0": 
55.     // fall through 
56.    case "RSS2.0": 
57.     $this->_feed=new RSSCreator20(); 
58.     break; 
59.    case "0.91": 
60.     // fall through 
61.    case "RSS0.91": 
62.     $this->_feed=new RSSCreator091(); 
63.     break; 
64.    default: 
65.     $this->_feed=new RSSCreator091(); 
66.     break; 
67.   } 
68.   $vars=get_object_vars($this); 
69.   <a href="/tags.php/foreach/" target="_blank">foreach</a> ($vars as $key => $value){ 
70.    // prevent overwriting of properties "contentType","encoding"; do not copy "_feed" itself 
71.    if(!in_array($key, array("_feed","contentType","encoding"))){ 
72.     $this->_feed->{$key}=$this->{$key}; 
73.    } 
74.   } 
75.  } 
76.  function createFeed($format="RSS0.91"){ 
77.   $this->_setFormat($format); 
78.   return $this->_feed->createFeed(); 
79.  } 
80.  function saveFeed($format="RSS0.91",$filename="",$displayContents=true){ 
81.   $this->_setFormat($format); 
82.   $this->_feed->saveFeed($filename,$displayContents); 
83.  } 
84.  function useCached($format="RSS0.91",$filename="",$timeout=3600){ 
85.   $this->_setFormat($format); 
86.   $this->_feed->useCached($filename,$timeout); 
87.  } 
88. } 
89. class FeedCreator extends HtmlDescribable{ 
90.  var $title,$description,$link; 
91.  var $syndicationURL,$image,$language,$copyright,$pubDate,$lastBuildDate,$editor,$editorEmail,$webmaster,$category,$docs,$ttl,$rating,$skipHours,$skipDays; 
92.  var $xslStyleSheet=""; 
93.  var $items=Array(); 
94.  var $contentType="application/xml"; 
95.  var $encoding="utf-8"; 
96.  var $additionalElements=Array(); 
97.  function addItem($item){ 
98.   $this->items[]=$item; 
99.  } 
100.  function clearItem2Null(){ 
101.   $this->items=array(); 
102.  } 
103.  function iTrunc($string,$length){ 
104.   if(strlen($string)<=$length){ 
105.    return $string; 
106.   } 
107.   $pos=strrpos($string,"."); 
108.   if($pos>=$length-4){ 
109.    $string=<a href="/tags.php/substr/" target="_blank">substr</a>($string,0,$length-4); 
110.    $pos=strrpos($string,"."); 
111.   } 
112.   if($pos>=$length*0.4){ 
113.    return substr($string,0,$pos+1)." ..."; 
114.   } 
115.   $pos=strrpos($string," "); 
116.   if($pos>=$length-4){ 
117.    $string=substr($string,0,$length-4); 
118.    $pos=strrpos($string," "); 
119.   } 
120.   if($pos>=$length*0.4){ 
121.    return substr($string,0,$pos)." ..."; 
122.   } 
123.   return substr($string,0,$length-4)." ..."; 
124.  } 
125.  
126.  function _createGeneratorComment(){ 
127.   return "<!-- generator=/"".FEEDCREATOR_VERSION."/" -->/n"; 
128.  } 
129.  function _createAdditionalElements($elements,$indentString=""){ 
130.   $ae=""; 
131.   if(is_array($elements)){ 
132.    foreach($elements AS $key => $value){ 
133.     $ae.= $indentString."<$key>$value</$key>/n"; 
134.    } 
135.   } 
136.   return $ae; 
137.  } 
138.  function _createStylesheetReferences(){ 
139.   $xml=""; 
140.   if($this->cssStyleSheet) $xml .= "<?xml-stylesheet href=/"".$this->cssStyleSheet."/" type=/"text/css/"?>/n"; 
141.   if($this->xslStyleSheet) $xml .= "<?xml-stylesheet href=/"".$this->xslStyleSheet."/" type=/"text/xsl/"?>/n"; 
142.   return $xml; 
143.  } 
144.  function createFeed(){} 
145.  function _generateFilename(){ 
146.   $fileInfo=pathinfo($_SERVER["PHP_SELF"]); 
147.   return substr($fileInfo["basename"],0,-(strlen($fileInfo["extension"])+1)).".xml"; 
148.  } 
149.  function _redirect($filename){ 
150.   Header("Content-Type: ".$this->contentType."; charset=".$this->encoding."; filename=".basename($filename)); 
151.   Header("Content-Disposition: inline; filename=".basename($filename)); 
152.   readfile($filename,"r"); 
153.   die(); 
154.  } 
155.  function useCached($filename="",$timeout=3600){ 
156.   $this->_timeout=$timeout; 
157.   if($filename==""){ 
158.    $filename=$this->_generateFilename(); 
159.   } 
160.   if(file_exists($filename) && (time()-filemtime($filename) < $timeout)){ 
161.    $this->_redirect($filename); 
162.   } 
163.  } 
164.  function saveFeed($filename="",$displayContents=true){ 
165.   if($filename==""){ 
166.    $filename=$this->_generateFilename(); 
167.   } 
168.   $feedFile=<a href="/tags.php/fopen/" target="_blank">fopen</a>($filename,"w+"); 
169.   if($feedFile){ 
170.    fputs($feedFile,$this->createFeed()); 
171.    fclose($feedFile); 
172.    if($displayContents){ 
173.     $this->_redirect($filename); 
174.    } 
175.   }else{ 
176.    echo "<br /><b>Error creating feed file, please check write permissions.</b><br />"; 
177.   } 
178.  } 
179. } 
180. class FeedDate{ 
181.  var $unix; 
182.  function FeedDate($dateString=""){ 
183.   if($dateString=="") $dateString=date("r"); 
184.   if(is_integer($dateString)){ 
185.    $this->unix=$dateString; 
186.    return; 
187.   } 
188.   if(<a href="/tags.php/preg_match/" target="_blank">preg_match</a>("~(?:(?:Mon|Tue|Wed|Thu|Fri|Sat|Sun),//s+)?(//d{1,2})//s+([a-zA-Z]{3})//s+(//d{4})//s+(//d{2}):(//d{2}):(//d{2})//s+(.*)~",$dateString,$matches)){ 
189.    $months=Array("Jan"=>1,"Feb"=>2,"Mar"=>3,"Apr"=>4,"May"=>5,"Jun"=>6,"Jul"=>7,"Aug"=>8,"Sep"=>9,"Oct"=>10,"Nov"=>11,"Dec"=>12); 
190.    $this->unix=mktime($matches[4],$matches[5],$matches[6],$months[$matches[2]],$matches[1],$matches[3]); 
191.    if(substr($matches[7],0,1)=='+' OR substr($matches[7],0,1)=='-'){ 
192.     $tzOffset=(substr($matches[7],0,3) * 60 + substr($matches[7],-2)) * 60; 
193.    }else{ 
194.     if(strlen($matches[7])==1){ 
195.      $oneHour=3600; 
196.      $ord=ord($matches[7]); 
197.      if($ord < ord("M")){ 
198.       $tzOffset=(ord("A") - $ord - 1) * $oneHour; 
199.      } elseif($ord >= ord("M") && $matches[7]!="Z"){ 
200.       $tzOffset=($ord - ord("M")) * $oneHour; 
201.      } elseif($matches[7]=="Z"){ 
202.       $tzOffset=0; 
203.      } 
204.     } 
205.     switch ($matches[7]){ 
206.      case "UT": 
207.      case "GMT":    $tzOffset=0; 
208.     } 
209.    } 
210.    $this->unix += $tzOffset; 
211.    return; 
212.   } 
213.   if(preg_match("~(//d{4})-(//d{2})-(//d{2})T(//d{2}):(//d{2}):(//d{2})(.*)~",$dateString,$matches)){ 
214.    $this->unix=mktime($matches[4],$matches[5],$matches[6],$matches[2],$matches[3],$matches[1]); 
215.    if(substr($matches[7],0,1)=='+' OR substr($matches[7],0,1)=='-'){ 
216.     $tzOffset=(substr($matches[7],0,3) * 60 + substr($matches[7],-2)) * 60; 
217.    }else{ 
218.     if($matches[7]=="Z"){ 
219.      $tzOffset=0; 
220.     } 
221.    } 
222.    $this->unix += $tzOffset; 
223.    return; 
224.   } 
225.   $this->unix=0; 
226.  } 
227.  function rfc822(){ 
228.   $date=gmdate("Y-m-d H:i:s",$this->unix); 
229.   if(TIME_ZONE!="") $date .= " ".str_replace(":","",TIME_ZONE); 
230.   return $date; 
231.  } 
232.  function iso8601(){ 
233.   $date=gmdate("Y-m-d H:i:s",$this->unix); 
234.   $date=substr($date,0,22) . ':' . substr($date,-2); 
235.   if(TIME_ZONE!="") $date=str_replace("+00:00",TIME_ZONE,$date); 
236.   return $date; 
237.  } 
238.  function unix(){ 
239.   return $this->unix; 
240.  } 
241. } 
242. class RSSCreator10 extends FeedCreator{ 
243.  function createFeed(){ 
244.   $feed="<?xml version=/"1.0/" encoding=/"".$this->encoding."/"?>/n"; 
245.   $feed.= $this->_createGeneratorComment(); 
246.   if($this->cssStyleSheet==""){ 
247.    $cssStyleSheet="http://www.w3.org/2000/08/w3c-synd/style.css"; 
248.   } 
249.   $feed.= $this->_createStylesheetReferences(); 
250.   $feed.= "<rdf:RDF/n"; 
251.   $feed.= "    xmlns=/"http://purl.org/rss/1.0//"/n"; 
252.   $feed.= "    xmlns:rdf=/"http://www.w3.org/1999/02/22-rdf-syntax-ns#/"/n"; 
253.   $feed.= "    xmlns:slash=/"http://purl.org/rss/1.0/modules/slash//"/n"; 
254.   $feed.= "    xmlns:dc=/"http://purl.org/dc/elements/1.1//">/n"; 
255.   $feed.= "    <channel rdf:about=/"".$this->syndicationURL."/">/n"; 
256.   $feed.= "        <title>".htmlspecialchars($this->title)."</title>/n"; 
257.   $feed.= "        <description>".htmlspecialchars($this->description)."</description>/n"; 
258.   $feed.= "        <link>".$this->link."</link>/n"; 
259.   if($this->image!=null){ 
260.    $feed.= "        <image rdf:resource=/"".$this->image->url."/" />/n"; 
261.   } 
262.   $now=new FeedDate(); 
263.   $feed.= "       <dc:date>".htmlspecialchars($now->iso8601())."</dc:date>/n"; 
264.   $feed.= "        <items>/n"; 
265.   $feed.= "            <rdf:Seq>/n"; 
266.   for ($i=0;$i<count($this->items);$i++){ 
267.    $feed.= "                <rdf:li rdf:resource=/"".htmlspecialchars($this->items[$i]->link)."/"/>/n"; 
268.   } 
269.   $feed.= "            </rdf:Seq>/n"; 
270.   $feed.= "        </items>/n"; 
271.   $feed.= "    </channel>/n"; 
272.   if($this->image!=null){ 
273.    $feed.= "    <image rdf:about=/"".$this->image->url."/">/n"; 
274.    $feed.= "        <title>".$this->image->title."</title>/n"; 
275.    $feed.= "        <link>".$this->image->link."</link>/n"; 
276.    $feed.= "        <url>".$this->image->url."</url>/n"; 
277.    $feed.= "    </image>/n"; 
278.   } 
279.   $feed.= $this->_createAdditionalElements($this->additionalElements,"    "); 
280.   for ($i=0;$i<count($this->items);$i++){ 
281.    $feed.= "    <item rdf:about=/"".htmlspecialchars($this->items[$i]->link)."/">/n"; 
282.    //$feed.= "        <dc:type>Posting</dc:type>/n"; 
283.    $feed.= "        <dc:format>text/html</dc:format>/n"; 
284.    if($this->items[$i]->date!=null){ 
285.     $itemDate=new FeedDate($this->items[$i]->date); 
286.     $feed.= "        <dc:date>".htmlspecialchars($itemDate->iso8601())."</dc:date>/n"; 
287.    } 
288.    if($this->items[$i]->source!=""){ 
289.     $feed.= "        <dc:source>".htmlspecialchars($this->items[$i]->source)."</dc:source>/n"; 
290.    } 
291.    if($this->items[$i]->author!=""){ 
292.     $feed.= "        <dc:creator>".htmlspecialchars($this->items[$i]->author)."</dc:creator>/n"; 
293.    } 
294.    $feed.= "        <title>".htmlspecialchars(strip_tags(strtr($this->items[$i]->title,"/n/r","  ")))."</title>/n"; 
295.    $feed.= "        <link>".htmlspecialchars($this->items[$i]->link)."</link>/n"; 
296.    $feed.= "        <description>".htmlspecialchars($this->items[$i]->description)."</description>/n"; 
297.    $feed.= $this->_createAdditionalElements($this->items[$i]->additionalElements,"        "); 
298.    $feed.= "    </item>/n"; 
299.   } 
300.   $feed.= "</rdf:RDF>/n"; 
301.   return $feed; 
302.  } 
303. } 
304. class RSSCreator091 extends FeedCreator{ 
305.  var $RSSVersion; 
306.  function RSSCreator091(){ 
307.   $this->_setRSSVersion("0.91"); 
308.   $this->contentType="application/rss+xml"; 
309.  } 
310.  function _setRSSVersion($version){ 
311.   $this->RSSVersion=$version; 
312.  } 
313.  function createFeed(){ 
314.   $feed="<?xml version=/"1.0/" encoding=/"".$this->encoding."/"?>/n"; 
315.   $feed.= $this->_createGeneratorComment(); 
316.   $feed.= $this->_createStylesheetReferences(); 
317.   $feed.= "<rss version=/"".$this->RSSVersion."/">/n"; 
318.   $feed.= "    <channel>/n"; 
319.   $feed.= "        <title>".FeedCreator::iTrunc(htmlspecialchars($this->title),100)."</title>/n"; 
320.   $this->descriptionTruncSize=500; 
321.   $feed.= "        <description>".$this->getDescription()."</description>/n"; 
322.   $feed.= "        <link>".$this->link."</link>/n"; 
323.   $now=new FeedDate(); 
324.   $feed.= "        <lastBuildDate>".htmlspecialchars($now->rfc822())."</lastBuildDate>/n"; 
325.   $feed.= "        <generator>".FEEDCREATOR_VERSION."</generator>/n"; 
326.   if($this->image!=null){ 
327.    $feed.= "        <image>/n"; 
328.    $feed.= "            <url>".$this->image->url."</url>/n"; 
329.    $feed.= "            <title>".FeedCreator::iTrunc(htmlspecialchars($this->image->title),100)."</title>/n"; 
330.    $feed.= "            <link>".$this->image->link."</link>/n"; 
331.    if($this->image->width!=""){ 
332.     $feed.= "            <width>".$this->image->width."</width>/n"; 
333.    } 
334.    if($this->image->height!=""){ 
335.     $feed.= "            <height>".$this->image->height."</height>/n"; 
336.    } 
337.    if($this->image->description!=""){ 
338.     $feed.= "            <description>".$this->image->getDescription()."</description>/n"; 
339.    } 
340.    $feed.= "        </image>/n"; 
341.   } 
342.   if($this->language!=""){ 
343.    $feed.= "        <language>".$this->language."</language>/n"; 
344.   } 
345.   if($this->copyright!=""){ 
346.    $feed.= "        <copyright>".FeedCreator::iTrunc(htmlspecialchars($this->copyright),100)."</copyright>/n"; 
347.   } 
348.   if($this->editor!=""){ 
349.    $feed.= "        <managingEditor>".FeedCreator::iTrunc(htmlspecialchars($this->editor),100)."</managingEditor>/n"; 
350.   } 
351.   if($this->webmaster!=""){ 
352.    $feed.= "        <webMaster>".FeedCreator::iTrunc(htmlspecialchars($this->webmaster),100)."</webMaster>/n"; 
353.   } 
354.   if($this->pubDate!=""){ 
355.    $pubDate=new FeedDate($this->pubDate); 
356.    $feed.= "        <pubDate>".htmlspecialchars($pubDate->rfc822())."</pubDate>/n"; 
357.   } 
358.   if($this->category!=""){ 
359.    $feed.= "        <category>".htmlspecialchars($this->category)."</category>/n"; 
360.   } 
361.   if($this->docs!=""){ 
362.    $feed.= "        <docs>".FeedCreator::iTrunc(htmlspecialchars($this->docs),500)."</docs>/n"; 
363.   } 
364.   if($this->ttl!=""){ 
365.    $feed.= "        <ttl>".htmlspecialchars($this->ttl)."</ttl>/n"; 
366.   } 
367.   if($this->rating!=""){ 
368.    $feed.= "        <rating>".FeedCreator::iTrunc(htmlspecialchars($this->rating),500)."</rating>/n"; 
369.   } 
370.   if($this->skipHours!=""){ 
371.    $feed.= "        <skipHours>".htmlspecialchars($this->skipHours)."</skipHours>/n"; 
372.   } 
373.   if($this->skipDays!=""){ 
374.    $feed.= "        <skipDays>".htmlspecialchars($this->skipDays)."</skipDays>/n"; 
375.   } 
376.   $feed.= $this->_createAdditionalElements($this->additionalElements,"    "); 
377.   for ($i=0;$i<count($this->items);$i++){ 
378.    $feed.= "        <item>/n"; 
379.    $feed.= "            <title>".FeedCreator::iTrunc(htmlspecialchars(strip_tags($this->items[$i]->title)),100)."</title>/n"; 
380.    $feed.= "            <link>".htmlspecialchars($this->items[$i]->link)."</link>/n"; 
381.    $feed.= "            <description>".$this->items[$i]->getDescription()."</description>/n"; 
382.    if($this->items[$i]->author!=""){ 
383.     $feed.= "            <author>".htmlspecialchars($this->items[$i]->author)."</author>/n"; 
384.    } 
385.    /* 
386.     // on hold 
387.     if($this->items[$i]->source!=""){ 
388.     $feed.= "            <source>".htmlspecialchars($this->items[$i]->source)."</source>/n"; 
389.     } 
390.     */ 
391.    if($this->items[$i]->category!=""){ 
392.     $feed.= "            <category>".htmlspecialchars($this->items[$i]->category)."</category>/n"; 
393.    } 
394.    if($this->items[$i]->comments!=""){ 
395.     $feed.= "            <comments>".htmlspecialchars($this->items[$i]->comments)."</comments>/n"; 
396.    } 
397.    if($this->items[$i]->date!=""){ 
398.     $itemDate=new FeedDate($this->items[$i]->date); 
399.     $feed.= "            <pubDate>".htmlspecialchars($itemDate->rfc822())."</pubDate>/n"; 
400.    } 
401.    if($this->items[$i]->guid!=""){ 
402.     $feed.= "            <guid>".htmlspecialchars($this->items[$i]->guid)."</guid>/n"; 
403.    } 
404.    $feed.= $this->_createAdditionalElements($this->items[$i]->additionalElements,"        "); 
405.    $feed.= "        </item>/n"; 
406.   } 
407.   $feed.= "    </channel>/n"; 
408.   $feed.= "</rss>/n"; 
409.   return $feed; 
410.  } 
411. } 
412. class RSSCreator20 extends RSSCreator091{ 
413.  function RSSCreator20(){ 
414.   parent::_setRSSVersion("2.0"); 
415.  } 
416. } 

使用示例:

1. <?php 
2. header('Content-Type:text/html; charset=utf-8'); 
3. $db=mysql_connect('127.0.0.1','root','123456'); 
4. mysql_query("set names utf8"); 
5. mysql_<a href="/tags.php/select/" target="_blank">select</a>_db('dbname',$db); 
6. $brs=mysql_query('select * from article order by add_time desc limit 0,10',$db); 
7. $rss=new UniversalFeedCreator(); 
8. $rss->title="页面标题"; 
9. $rss->link="网址http://"; 
10. $rss->description="rss标题"; 
11. while($rowbrs=mysql_fetch_array($brs)){ 
12.  $item=new FeedItem(); 
13.  $item->title =$rowbrs['subject']; 
14.  $item->link='http://www.Vevb.com/'; 
15.  $item->description =$rowbrs['description']; 
16.  $rss->addItem($item); 
17. } 
18. mysql_close($db); 
19. $rss->saveFeed("RSS2.0","rss.xml"); 
20. ?>