Parses the feed and displays the title, author, published date etc in html. All parameters are optional except feed_url

getFeeds.php

<?php
/**
 * This script gets the feeds of the specified rss link.
 *
 * @author     - Naren
 * @version    - 1.0.0
 * @since      - 4th April, 2014. 17:23 EST
 *
 */

/*
Parameters:

feed_url         required - The url of the rss
limit            optional - Number of posts to be displayed
getDate          optional - If given the date is displayed
getAuthor        optional - If give the author is displayed
getDescription   optional - If given the description is displayed
numberOfWords    optional - If given the number of words to be displayed will be used

Examples:

1. To display the title of the latest post only

getFeeds.php?
feed_url=http://narendran.info/blog/?feed=rss2

2. To display the tile of latest 3 posts   

getFeeds.php?
feed_url=http://narendran.info/blog/?feed=rss2
&limit=3

3. To display the title and description of latest 3 posts

getFeeds.php?
feed_url=http://narendran.info/blog/?feed=rss2
&limit=3
&getDescription

4. To display the title, author, date and first 20 words of description of latest 3 posts

getFeeds.php?
feed_url=http://narendran.info/blog/?feed=rss2
&limit=3
&getAuthor
&getDate
&getDescription
&numberOfWords=20


*/


$link = $_GET['feed_url'];

$limit          = 1;
$getDate        = false;
$getAuthor      = false;
$getDescription = false;
$numberOfWords  = 10;


if (!isset($_GET['feed_url'])) {
    echo "You must specify the link atleast!";
    exit;
}

if (isset($_GET['limit']))
    $limit = $_GET['limit'];

if (isset($_GET['getDate']))
    $getDate = true;

if (isset($_GET['getAuthor']))
    $getAuthor = true;

if (isset($_GET['getDescription']))
    $getDescription = true;

if (isset($_GET['numberOfWords']))
    $numberOfWords = $_GET['numberOfWords'];


$rss = new DOMDocument();
$rss->load($link);
$feed = array();

$count = 0;
foreach ($rss->getElementsByTagName('item') as $node) {
    $item = array(
        'title' => $node->getElementsByTagName('title')->item(0)->nodeValue,
        'description' => word_trim($node->getElementsByTagName('description')->item(0)->nodeValue, $numberOfWords, true),
        'link' => $node->getElementsByTagName('link')->item(0)->nodeValue,
        'date' => $node->getElementsByTagName('pubDate')->item(0)->nodeValue,
        'author' => $node->getElementsByTagName('creator')->item(0)->nodeValue
    );
    
    
    if ($count >= $limit)
        break;
    else
        $count++;
    
    array_push($feed, $item);
}


for ($i = 0; $i < count($feed); $i++) {
    echo "<span class='post'>";
    echo "<span class = 'rsstitle'><a title='" . str_replace(' & ', ' &amp; ', $feed[0]['title']) . "' href='" . $feed[$i]['link'] . "'>" . $feed[$i]['title'] . "</a></rsstitle>";
    
    if ($getDate)
        echo " - <span class='rssdate'>" . substr($feed[$i]['date'], 0, -15) . "</span>";
    if ($getAuthor)
        echo " - <span class='rssauthor'>" . $feed[$i]['author'] . "</span>";
    if ($limit == 1) {
        echo "</span>";
        break;
    }
    echo "<br/>";
    if ($getDescription)
        echo "<span class='rssdescription'>" . $feed[$i]['description'] . "</span>";
    echo "<br/>";
    echo "</span>";
}

function word_trim($string, $count, $ellipsis = FALSE)
{
    $words = explode(' ', $string);
    if (count($words) > $count) {
        array_splice($words, $count);
        $string = implode(' ', $words);
        if (is_string($ellipsis)) {
            $string .= $ellipsis;
        } elseif ($ellipsis) {
            $string .= '&hellip;';
        }
    }
    return $string;
}
?>