Simple PHP library for interacting with the v3 BITLY API - using OAuth

bitly.php

<?php
/**
 * @file
 * Simple PHP library for interacting with the v3 BITLY API - using OAuth
 * REQUIREMENTS: PHP, Curl, JSON
 * 
 * @author Andrew Pinzler <ap@bitly.com>
 */
 
 
/**
 * The URI of the bitly OAuth endpoints.
 */
define('bitly_oauth_api', 'https://api-ssl.bit.ly/v3/');
 
/**
 * The bitly access token assigned to your bit.ly account. 
 *(http://bit.ly/a/oauth_apps or http://github.com/pinzler/bitly-php-oauth)
 */
define('bitlyAccessToken', 'YOUR_BITLY_ACCESS_TOKEN');
 
/**
 * Given a longUrl, get the bit.ly shortened version -  using Ouath
 *
 *
 * @param $longUrl
 *   Long URL to be shortened.
 * @param $domain
 *   Uses bit.ly (default), j.mp, or a bit.ly pro domain.
 * @param $access_token
 *   User's Access Token.
 *
 * @return
 *   An associative array containing:
 *   - url: The unique shortened link that should be used, this is a unique
 *     value for the given bit.ly account.
 *   - hash: A bit.ly identifier for long_url which is unique to the given
 *     account.
 *   - global_hash: A bit.ly identifier for long_url which can be used to track
 *     aggregate stats across all matching bit.ly links.
 *   - long_url: An echo back of the longUrl request parameter.
 *   - new_hash: Will be set to 1 if this is the first time this long_url was
 *     shortened by this user. It will also then be added to the user history.
 *
 * @see http://dev.bitly.com/links.html#v3_shorten
 */
function bitly_v3_shorten($longUrl, $domain = '') {
  $result = array();
  $url = bitly_oauth_api . "shorten?access_token=" . bitlyAccessToken . "&format=json&longUrl=" . urlencode($longUrl);
  if ($domain != '') {
    $url .= "&domain=" . $domain;
  }
  $output = json_decode(bitly_get_curl($url));
  if (isset($output->{'data'}->{'hash'})) {
    $result['url'] = $output->{'data'}->{'url'};
    $result['hash'] = $output->{'data'}->{'hash'};
    $result['global_hash'] = $output->{'data'}->{'global_hash'};
    $result['long_url'] = $output->{'data'}->{'long_url'};
    $result['new_hash'] = $output->{'data'}->{'new_hash'};
  }
  return $result;
}

/**
 * Make a GET call to the bitly API.
 *
 * @param $uri
 *   URI to call.
 */
function bitly_get_curl($uri) {
  $output = "";
  try {
    $ch = curl_init($uri);
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_TIMEOUT, 25);
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 2);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
    $output = curl_exec($ch);
  } catch (Exception $e) {
  }
  return $output;
}
 
/**
 * Make a POST call to the bitly API.
 *
 * @param $uri
 *   URI to call.
 * @param $fields
 *   Array of fields to send.
 */
function bitly_post_curl($uri, $fields) {
  $output = "";
  $fields_string = "";
  foreach($fields as $key=>$value) { $fields_string .= $key.'='.$value.'&'; }
  rtrim($fields_string,'&');
  try {
    $ch = curl_init($uri);
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch,CURLOPT_POST,count($fields));
    curl_setopt($ch,CURLOPT_POSTFIELDS,$fields_string);
    curl_setopt($ch, CURLOPT_TIMEOUT, 25);
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 2);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
    $output = curl_exec($ch);
  } catch (Exception $e) {
  }
  return $output;
}