Twitter Oauth Auto Follow

I found this code, the person who posted the code say it works for him... but it doesnt work on my end. Anybody know how to get this working?

<?php
require_once 'lib/twitteroauth.php';
 
define('CONSUMER_KEY', 'your_consumer_key');
define('CONSUMER_SECRET', 'your_consumer_secret');
define('ACCESS_TOKEN', 'your_access_token');
define('ACCESS_TOKEN_SECRET', 'your_access_token_secret');
 
function autoFollow()
{
    $toa = new TwitterOAuth(CONSUMER_KEY, CONSUMER_SECRET, ACCESS_TOKEN, ACCESS_TOKEN_SECRET);
 
    $followers = $toa->get('followers/ids', array('cursor' => -1));
    $followerIds = array();
    foreach ($followers->ids as $i => $id) {
        $followerIds[] = $id;
        if ($i == 99) break; // Deal with only the latest 100 followers.
    }
 
    $friends = $toa->get('friends/ids', array('cursor' => -1));
    $friendIds = array();
    foreach ($friends->ids as $i => $id) {
        $friendIds[] = $id;
        if ($i == 99) break; // Deal with only the latest 100 friends.
    }
 
    foreach ($followerIds as $id) {
        if (empty($friendIds) or !in_array($id, $friendIds)) {
            $ret = $toa->post('friendships/create', array('user_id' => $id));
        }
    }
}
 
autoFollow();
?>

PHP:

I would gladly paypal $5 to whoever can get this working correctly.

And I would paypal another $5 to who ever can get this script to auto follow people by keyword, and auto unfollow who doesnt follow me