Looking for an Automation Tool..

<?php
require_once('twitteroauth.php');


$consumer_key = "yourkey";
$consumer_secret = "yoursecret";
$access_key = "youraccess key";
$access_secret = "your secret";


$lines = file ("/home/user/public_html/tweets.txt");


date_default_timezone_set('America/New_York');
$tweetContentDate = date('m/d/Y h:i:s a', time());


srand ((double)microtime()*1000000);


$tweetContent = $lines[array_rand ($lines)];


$tweet = array('status' => $tweetContent);


$status = $tweetContent;


if ($status) {
 
    $connection = new TwitterOAuth ($consumer_key ,$consumer_secret , $access_key , $access_secret );
 
    $resultArray = $connection->post('statuses/update', $tweet);


    if ($connection->http_code == 200) {
        error_log('Tweeted: '.$tweetContent." on ".$tweetContentDate."\n", 3, "tweeterErrors.log");
    } else {
        error_log('Error posting to Twitter: '.$resultArray->http_code." on ".$tweetContentDate."\n", 3, "tweeterErrors.log");
    }


echo $tweetContent;


}


?>