I am trying to build an RSS reader in a website, but cannot seem to get it to work. I am trying to populate my getrss.php file with many RSS feeds that I can later call in my html code. For example I want to make my life easier and create only 1 getrss.php file with 20 different RSS feeds, but call one feed in 20 different html documents. I am using the tutorial example located at http://www.w3schools.com/php/php_ajax_rss_reader.asp as a guideline, however I want to do things differently. I do not want a form. I just want the rss to display as soon as the webpage is loaded. However, it's not working. Also, how would I later call different xml links in the html file...let's say I have 20? I have this so far -
getrss.php:
<?php
//get the q parameter from URL
$q=$_GET["q"];
$q=$xml=("http://rss.msnbc.msn.com/id/3032091/device/rss/rss.xml");
$q2=$xml2=("httP://rss.feed2.xml")
$q3=$xml3=("httP://rss.feed3.xml")
$xmlDoc = new DOMDocument();
$xmlDoc->load($xml);
//get elements from "<channel>"
$channel=$xmlDoc->getElementsByTagName('channel')->item(0);
$channel_title = $channel->getElementsByTagName('title')
->item(0)->childNodes->item(0)->nodeValue;
$channel_link = $channel->getElementsByTagName('link')
->item(0)->childNodes->item(0)->nodeValue;
$channel_desc = $channel->getElementsByTagName('description')
->item(0)->childNodes->item(0)->nodeValue;
//output elements from "<channel>"
echo("<p><a href='" . $channel_link
. "'>" . $channel_title . "</a>");
echo("<br>");
echo($channel_desc . "</p>");
//get and output "<item>" elements
$x=$xmlDoc->getElementsByTagName('item');
for ($i=0; $i<=2; $i++) {
$item_title=$x->item($i)->getElementsByTagName('title')
->item(0)->childNodes->item(0)->nodeValue;
$item_link=$x->item($i)->getElementsByTagName('link')
->item(0)->childNodes->item(0)->nodeValue;
$item_desc=$x->item($i)->getElementsByTagName('description')
->item(0)->childNodes->item(0)->nodeValue;
echo ("<p><a href='" . $item_link
. "'>" . $item_title . "</a>");
echo ("<br>");
echo ($item_desc . "</p>");
}
?>
rss.html:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<script>
function showRSS(str) {
if (str.length==0) {
document.getElementById("rssOutput").innerHTML="";
return;
}
if (window.XMLHttpRequest) {
// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
} else { // code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function() {
if (xmlhttp.readyState==4 && xmlhttp.status==200) {
document.getElementById("rssOutput").innerHTML=xmlhttp.responseText;
}
}
xmlhttp.open("GET","getrss.php?q="+str,true);
xmlhttp.send();
}
</script>
</head>
<body>
<div id="rssOutput">RSS-feed will be listed here...</div>
</body>
</html>
