/mvc/components/rss

<?php
/**
 * RSS/Atom feed reader
 */
class rssComponent {
    /**
     * A more forgiving extension of PHP's strtotime()
     *
     * @param str $date
     * @return int
     */
    protected function _strtotime($date) {
        $timestamp = strtotime($date);
        if ($timestamp == -1) {
            $date = str_replace('T', ' ', substr($date, 0, (strlen($date)-6)));
            $lastDot = strrpos($date, '.');
            if ($lastDot) {
                $date = substr($date, 0, $lastDot);
            }
            $timestamp = strtotime($date);
        }
        return $timestamp;
    }

    /**
     * Reads an RSS or Atom feed and returns the contents in a PHP array consisting of title, description, link
 and
     * date (if included.)
     *
     * @param str $url
     * @return array
     */
    public function getFeed($url) {
        $xml = simplexml_load_string(file_get_contents($url));
        if (isset($xml->channel)) {
            $items = $xml->channel->item;
            $feedtype = 'rss2.0';
        } else {
            $items = $xml->entry;
            $feedtype = 'atom';
        }
        foreach($items as $item) {
            $title = $item->title;
            if ($feedtype == 'rss2.0') {
                $link = (isset($item->link) ? $item->link : $item->guid);
                $description = (isset($item->description) ? $item->description
                                                           : current($item->xpath('content:encoded')));
                $date = (isset($item->pubDate) ? $item->pubDate : current($item->xpath('dc:date')));
            } else {
                $link = $item->link['href'];
                $description = (isset($item->content) ? $item->content : $item->summary);
                $date = (isset($item->updated) ? $item->updated : $item->created);
            }
            $return = array('title' => trim($title), 'link' => trim($link), 'description' => trim($description));
            if ($date) {
                $timestamp = $this->_strtotime($date);
                $return['date'] = date('Y-m-d H:i:s', $timestamp);
            }
            $data[] = $return;
        }
        return (isset($data) ? $data : array());
    }
}