crawler.php

<?php
$user="SCREEN_NAME";
$pass="PASSWORD";
$log="friends.txt";
$host="http://".$user.":".$pass."@twitter.com/";
$list=array();
$page=1;
while(1){
    $api=$host."statuses/friends/".$user.".xml?page=".$page;
    $xml=simplexml_load_file($api);
    if($xml->user)
    {
        foreach($xml->user as $follower)
        {
            $screen_name=$follower->screen_name;
            if(($follower->protected == "false")&&
                (time() - strtotime($follower->status->created_at) < 60*60*24*14))
            {
                array_push($list, $screen_name);
            }
        }
    }
    else
    {
        break;
    }
    $page++;
}
$f=fopen($log, "w");
fwrite($f, implode("\n", $list));
fclose($f);
?>