<?php

  $now   = date("D, d M Y H:i:s T");
  $ASIN  = $url = $img = $title = $bio = $name = "";

  $head = '<?xml version="1.0" encoding="ISO-8859-1"?>';
  $head .= '<rss version="2.0">';
  $head .= '<channel>';
  $head .= '<title>Amazon </title>';
  $head .= '<link>http://www.amazon.com</link>';
  $head .= '<description>Amazon RSS Feed</description>';

  $url = "http://www.amazon.com/Best-Sellers-Kindle-Store/zgbs/digital-text/";

  $text = file_get_html($url);

  foreach ($text->find("div.zg_item_compact") as $class) {
    foreach ($class->find('strong.price') as $price) {
      if ($price->plaintext == "Free") {
              $rssfeed .= '<item>';
              foreach ($class->find("div.zg_title a") as $book) {
                preg_match("/\/dp\/(.*)\/ref/", $book->href, $matches);
                $ASIN  = trim($matches[1]);
                $url   = "http://www.amazon.com/dp/" . $ASIN . "/?tag=ctrlqorg-20";
                $img   = "http://images.amazon.com/images/P/" . $ASIN . ".01.LZZZZZZZ.jpg";
                $title = htmlentities(trim($book->plaintext));
                $rssfeed .= '<title>' . $title . '</title>';
                $rssfeed .= '<link>' . $url . '</link>';
                $rssfeed .= '<guid isPermaLink="true">' . $url . '</guid>';
                $rssfeed .= '<description>';
              }
              foreach ($class->find("div.zg_byline a") as $author) {
                  $bio  = "http://www.amazon.com" . $author->href . "/?tag=publisherapi-20";
                  $name = htmlentities(trim($author->plaintext));
                  $rssfeed .= 'By <a href="' . $authorURL . '">' . $name . '</a>';
              }
              $rssfeed .= '</description>';
              $rssfeed .= '<pubDate>' . $now . '</pubDate>';
              $rssfeed .= '</item>';
          }
      }
  }

  $footer  = '</channel></rss>';
  $rssfeed = $head . $rssfeed . $footer;
  $fh      = fopen("amazon.rss", "w");

  fwrite($fh, $rssfeed);
  fclose($fh);

?>