Pinboard.in/Delicious.com -> Chrome bookmark syncing : How to

<?php
 
/** Config section - start **/  
 
$bookmark_user = "--your-username-";
$bookmark_pass = "--your-password";
$bookmark_service = "pinboard.in"; // pinboard.in or delicious.com/del.icio.us
    
/** Config section - end **/
 
 
$url = "https://" . $bookmark_user . ":" . $bookmark_pass . "@api." . $bookmark_service . "/v1/posts/all";
$local_file = $bookmark_service . "." . $bookmark_user . ".xml";
 
/** Functions - start **/
 
function cURLcheckBasicFunctions()
{
    if( !function_exists("curl_init") &&
        !function_exists("curl_setopt") &&
        !function_exists("curl_exec") &&
        !function_exists("curl_close") ) return false;
    else return true;
}
 
/*
 * Returns string status information.
 * Can be changed to int or bool return types.
 */
function cURLdownload($url, $file)
{
  if( !cURLcheckBasicFunctions() ) return "UNAVAILABLE: cURL Basic Functions";
  $ch = curl_init();
  if($ch)
  {
    $fp = fopen($file, "w");
    if($fp)
    {
      if( !curl_setopt($ch, CURLOPT_URL, $url) )
      {
        fclose($fp); // to match fopen()
        curl_close($ch); // to match curl_init()
        return "FAIL: curl_setopt(CURLOPT_URL)";
      }
      if( !curl_setopt($ch, CURLOPT_FILE, $fp) ) return "FAIL: curl_setopt(CURLOPT_FILE)";
      if( !curl_setopt($ch, CURLOPT_HEADER, 0) ) return "FAIL: curl_setopt(CURLOPT_HEADER)";
      if( !curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0) ) return "FAIL: curl_setopt(CURLOPT_SSL_VERIFYPEER)";
      if( !curl_exec($ch) ) return "FAIL: curl_exec()";
      curl_close($ch);
      fclose($fp);
      return "SUCCESS: $file [$url]";
    }
    else return "FAIL: fopen()";
  }
  else return "FAIL: curl_init()";
}
 
//strip crap from xml to amke rss all happy
function XMLClean($string) {
    return preg_replace('/&(?![A-Za-z0-9#]{1,7};)/','&amp;',$string);
}
 
/** Functions - end **/
 
//get teh file
cURLdownload($url, $local_file);
 
//set the rss header
header("Content-Type: application/rss+xml; charset=ISO-8859-1");
 
 
$rssfeed = '<?xml version="1.0" encoding="ISO-8859-1"?>';
$rssfeed .= '<rss version="2.0">';
$rssfeed .= '<channel>';
$rssfeed .= '<title>Pinboard.in links</title>';
$rssfeed .= '<link>http://blog.justin.kelly.org.au/pinboardindeliciouscom-chrome-bookmark-syncin</link>';
$rssfeed .= '<description>Pinboard.in links as rss</description>';
$rssfeed .= '<language>en-us</language>';
#$rssfeed .= '<copyright>Copyright (C) 2009 mywebsite.com</copyright>';
 
//get the xml and convert to rsss items
$xml = simplexml_load_file($bookmark_service . "." . $bookmark_user . ".xml");
foreach($xml->post as $posts)
{
    $rssfeed .= '<item>';
    $rssfeed .= '<title>' . XMLClean($posts['description']) .  ' | ' . XMLClean($posts['tag']) .'</title>';
    $rssfeed .= '<description>' . XMLClean($posts['extended']) . '</description>';
    $rssfeed .= '<link>' . XMLClean($posts['href']) . '</link>';
    $rssfeed .= '<guid>' . XMLClean($posts['href']) . '</guid>';
    $rssfeed .= '<pubDate>' . date("D, d M Y H:i:s O", strtotime($posts['time'])) . '</pubDate>';
    $rssfeed .= '</item>';
}
 
$rssfeed .= '</channel>';
$rssfeed .= '</rss>';
 
echo $rssfeed;
?>