PHP RSS script

<?php

// Create a new DOM Document object, this will create a new XML declaration for us.
// We can enter the version number and encoding (in that order), by passing
// two arguments to the object's constructor.  By default, the XML
// declaration's version attribute will be set to "1.0"
$pDom = new DOMDocument();

// Here we create a new root elelement named rss.
$pRSS = $pDom->createElement('rss');

// We now add a new attribute to the rss element.  We name this new
// attribute version and give it a value of 0.91.
$pRSS->setAttribute('version', 0.91);

// Finally we append the attribute to the XML tree using appendChild
$pDom->appendChild($pRSS);

// We repeat the same process again here, but this time we're creating
// the channel element.
$pChannel = $pDom->createElement('channel');

$pRSS->appendChild($pChannel);

// Create the main child nodes of channel, these contain the information
// related to this RSS file.  I'm not going to comment each one of these
// as they should be easy enough to understand.  Basically we're creating
// a new element for each node, the first argument specifies the name of
// the element we're creating, and the second specifies the text value
// of the node, for example, title would render as:  <title>TalkPHP</title>
$pTitle = $pDom->createElement('title', 'TalkPHP');
$pLink  = $pDom->createElement('link', 'http://www.talkphp.com');
$pDesc  = $pDom->createElement('description', 'Discuss PHP and other various web related topics in a knowledgeable and friendly community.');
$pLang  = $pDom->createElement('language', 'en');
$pImage = $pDom->createElement('image');

// Here we simply append all the nodes we just created to the channel node
$pChannel->appendChild($pTitle);
$pChannel->appendChild($pLink);
$pChannel->appendChild($pDesc);
$pChannel->appendChild($pLang);
$pChannel->appendChild($pImage);

// Create three new elements that are needed to "describe" our image
$pURL   = $pDom->createElement('url', 'http://www.talkphp.com/images/misc/rss.jpg');
$pTitle = $pDom->createElement('title', 'TalkPHP');
$pLink  = $pDom->createElement('link', 'http://www.talkphp.com');

// Append these new elements to the image element
$pImage->appendChild($pURL);
$pImage->appendChild($pTitle);
$pImage->appendChild($pLink);

// This array represents the data contained within the imaginary database.
$aLatestThreads = array
(
    array
    (
        'title' => "G'day",
        'link' => 'http://www.talkphp.com/showthread.php?t=1107&amp;goto=newpost',
        'description' => "Forum: Member Introductions
                            Posted By: Shaun
                            Post Time: 09-14-2007 at 01:15 PM"
    ),

    array
    (
        'title' => "AJAX File Uploader",
        'link' => 'http://www.talkphp.com/showthread.php?t=1106&amp;goto=newpost',
        'description' => "Forum: Javascript, AJAX, E4X
                            Posted By: CreativeLogic
                            Post Time: 09-13-2007 at 07:32 PM",
    ),

    array
    (
        'title' => "Some sites of mine...",
        'link' => 'http://www.talkphp.com/showthread.php?t=1104&amp;goto=newpost',
        'description' => "Forum: Show Off
                            Posted By: Craddock
                            Post Time: 09-13-2007 at 04:54 PM"
    )


);

// Loop trough each result from our imaginary database, these are the
// RSS items that the viewer of the RSS will see
foreach ($aLatestThreads as $aThread)
{
    // Nothing new here, we're creating an item element as our parent
    // and then creating and adding three child nodes to it.
    $pItem  = $pDom->createElement('item');
    $pTitle = $pDom->createElement('title', $aThread['title']);
    $pLink  = $pDom->createElement('link', $aThread['link']);
    $pDesc  = $pDom->createElement('description', $aThread['description']);

    // Append the nodes to the item, then append the item to the channel

    $pItem->appendChild($pTitle);
    $pItem->appendChild($pLink);
    $pItem->appendChild($pDesc);

    $pChannel->appendChild($pItem);
}

// Set content type to XML, thus forcing the browser to render is as XML
header('Content-type: text/xml');

// Here we simply dump the XML tree to a string and output it to the browser
// We could use one of the other save methods to save the tree as a HTML string
// XML file or HTML file.
echo $pDom->saveXML();
?>