tweet_block.inc-1.1api.php

<?php
/**
 * @file
 * Tweet block bean plugin.
 */

/**
 * Require the twitteroauth library
 */
require_once(drupal_get_path('module','bean_tweets') . '/libraries/twitteroauth/twitteroauth.php');  

class TweetBlockBean extends BeanPlugin {

  // ... Code left out    

  /**
   * Gets the tweets from the cache or twitter.
   */
  private function getTweets(&$bean) {
    // Check the cache
    if ($cache = cache_get('bean_tweets-' . $bean->settings['handle'])) {
      $tweets = $cache->data;
    } 
    else { // Establish a connection
      $connection = new TwitterOAuth(
        variable_get('twitter_consumer_key'),
        variable_get('twitter_consumer_secret'),
        variable_get('twitter_access_token'),
        variable_get('twitter_token_secret')
      );
    
      // Set the host to the 1.1 API
      $connection->host = "https://api.twitter.com/1.1/";
    
      // Get the tweets
      $tweets = $connection->get(
        'statuses/user_timeline',
        array(
          'screen_name' => $bean->settings['handle'],
          'count'       => $bean->settings['number_of_tweets']
        )
      );
    
      // Cache the results if no errors
      if (!isset($tweets->errors)) {
        // Cache the results
        cache_set(
          'bean_tweets-' . $bean->settings['handle'],
          $tweets,
          'cache',
          time() + 60 * $bean->settings['cache_duration']
        );
      } 
      else { // Nullify tweets since there was an error
        $tweets = NULL;
      }
    }

    return $tweets;
  }
}