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How to parse RSS using PHP and C#
In last article I explained what is RSS feed, and how to create it, this time I will show how to parse it and display on your website using PHP and C#. As we know RSS is just a XML feed that needs to be parsed meaning that the text generated in RSS has to be separated into parts like title, link, description etc…
Now I will jump right into the code without further explanations, code speaks for itself.
Parse RSS using PHP
<?
function getElement($element,$item)
{
$temp = split("<".$element.">",$item);
$temp = split("</".$element.">",$temp[1]);
return (!empty($temp[0]))?trim($temp[0]):"";
}
$feedURL = "http://www.superiorwebsys.com/blog/rss/"; // should be changed to RSS that you are interested in like http://rss.cbc.ca/lineup/technology.xml
$feed=file_get_contents($feedURL);
$temp = split("</copyright>",$feed);
$temp = split("</channel>",$temp[1]);
$temp[0] = str_replace("<item>","",$temp[0]);
$temp = split("</item>",$temp[0]);
foreach($temp as $item)
{
if(getElement("pubDate",$item))
{?>
<div>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
<tr>
<td>
<a href="<?=getElement("link",$item)?>" style="font-family:Arial, Helvetica, sans-serif; font-size:18px; color:#993366;">
<?=date("F d, Y",strtotime(getElement("pubDate",$item)))?> - <?=getElement("title",$item)?>
</a>
</td>
</tr>
<tr><td height="5px"></td></tr>
<tr>
<td style="font-family:Arial, Helvetica, sans-serif; font-size:13px; color:#2D4560;">
<?=getElement("description",$item)?>
</td>
</tr>
<tr><td height="10px"></td></tr>
</table>
</div>
<?
}
}
?>
You can see script out put here: http://superiorwebsys.com/blog/posts/rssParser.php
Parse RSS using C#
<%@ Page Language="C#" %> <script runat="server"> public void parse_rss(string r_url) { System.Net.WebRequest myRequest = System.Net.WebRequest.Create(r_url); System.Net.WebResponse myResponse = myRequest.GetResponse(); System.IO.Stream r_stream = myResponse.GetResponseStream(); System.Xml.XmlDocument r_doc = new System.Xml.XmlDocument(); r_doc.Load(r_stream); System.Xml.XmlNodeList r_items = r_doc.SelectNodes("rss/channel/item"); string title = "", link = "", s_description = ""; for (int i = 0; i < r_items.Count; i++) { System.Xml.XmlNode r_detail; title = ""; link = ""; s_description = ""; r_detail = r_items.Item(i).SelectSingleNode("title"); if (r_detail != null) { title = r_detail.InnerText; } r_detail = r_items.Item(i).SelectSingleNode("link"); if (r_detail != null) { link = r_detail.InnerText; } r_detail = r_items.Item(i).SelectSingleNode("description"); if (r_detail != null) { s_description = r_detail.InnerText; } Response.Write("<p><b><a href='" + link + "' target='new'>" + title + "</a></b><br/>" + s_description + "</p>"); } } </script> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title>Untitled Page</title> </head> <body> <form id="form1" runat="server"><% string r_url = "http://superiorwebsys.com/blog/rss/"; parse_rss(r_url); %></form></body></html>
Michael Pankratov
Associated tags: PHP, Code, RSS, XML, C Comments:
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