gistfile1.php

function twitter_url_shorten_callback($match) {
  if (preg_match('#http://www.flickr.com/photos/[^/]+/(\d+)/#', $match[0], $matches)) {
    return 'http://flic.kr/p/'.flickr_encode($matches[1]);
  }
  /*
  if (!defined('BITLY_API_KEY')) return $match[0];
  $request = 'http://api.bit.ly/shorten?version=2.0.1&longUrl='.urlencode($match[0]).'&login='.BITLY_LOGIN.'&apiKey='.BITLY_API_KEY;
  $json = json_decode(twitter_fetch($request));
  if ($json->errorCode == 0) {
    $results = (array) $json->results;
    $result = array_pop($results);
    return $result->shortUrl;
  } else {
    return $match[0];
  }
  */
  if (!defined('GOOGLE_URL_SHORTENER')) return $match[0];
  $request = 'http://ggl-shortener.appspot.com/?url='.urlencode($match[0]);
  $json = json_decode(twitter_fetch($request));//lzq
  if (!isset($json->error_message)) {
  	return $json->short_url;
  } else {
  	return $match[0];
  }
  
}