WP Cache with Transients API and wp_remote_get

function get_tweets($tweet_count, $username) {
		
		if (empty($username))
			return false;

		$list = get_transient('list_of_tweets');
		
		if (!$list) {
			
			return fetch_tweets($tweet_count, $username);
		}

		return $list;

	}

	function fetch_tweets($tweet_count, $username)
	{
		//loading a JSON using wp_remote_get
		$list = wp_remote_get('https://api.twitter.com/1.1/statuses/'. $username . '.json?screen_name=twitterapi&count=' . $tweet_count);
		$list = json_decode($list['body']);

		//Error on Twitter, if error 215 (Bad Authentication data) create an APP here: https://apps.twitter.com/
		if (isset($list->errors)) {
			//create a fake tweet list, just to use on transient cache
			$list = array();
			$list[0] = new stdClass();
			$list[0]->text = 'Lorem Ipsum is simply dummy text of the printing and typesetting industry.';
			
			$list[1] = new stdClass();
			$list[1]->text = 'Lorem Ipsum has been the industry\'s standard dummy text ever since the 1500s.';
			
			$list[2] = new stdClass();
			$list[2]->text = 'Lorem Ipsum is that it has a more-or-less normal distribution of letters.';
			
			$list[3] = new stdClass();
			$list[3]->text = 'There are many variations of passages of Lorem Ipsum available, but the majority have suffered alteration in some form.';
			$list[3] = new stdClass();
			$list[3]->text = 'The generated Lorem Ipsum is therefore always free from repetition, injected humour, or non-characteristic words etc.';
		}

		//Config values for transient cache
		$values = new stdClass();
		$values->username = $username;
		$values->tweet_count = $tweet_count;
		$values->list = array(); //each tweet

		foreach($list as $tweet) {
			//That is better than use $i++ and compare. Its just subtrain each one until became 0;
			if ($tweet_count-- === 0) 
				break;
				
			$values->list[] = $tweet->text;
		}

		//setting the cache using the WP Transient API
		set_transient('list_of_tweets', $values, 60 * 10); //10 minutes cache

		return $values;
	}

	//Sample Usage:
	get_tweets(5, 'leocaseiro');