//CHANGE THIS PATH TO WHERE ProwlPHP IS LOCATED ON
//YOUR SERVER
include('../API/ProwlPHP.php');
$t = new Twitter();
 
/**
 * @class Twitter
 * This class integrates Twitter and Prowl notifications with the
 * iPhone. When this script runs it checks to see if any new
 * Twitter mentions have occured on your account since last check.
 * If any exist, the Tweet is sent to Prowl and will be notified
 * via push on your iPhone.
 *
 * This class uses ProwlPHP located at:
 * 			http://github.com/Fenric/ProwlPHP
 *
 * @author Kastang (josh dot kastang at gmail dot com)
 */
class Twitter {
 
    var $xml;
    var $lastID;
    var $tUser;
    var $tPass;
    var $prowl;
 
    /**
     * Constructor for Twitter Class. Three lines need to be edited
     * below before running the file: prowl, tUser, and tPass.
     */
    function __construct() {
 
        //EDIT THE 3 LINES BELOW
        $this->prowl = new Prowl('YOUR PROWL API KEY');
        $this->tUser = "TWITTER USERNAME";
        $this->tPass = "TWITTER PASSWORD";
 
        //XML info loaded from Twitter API.
        $this->xml = simplexml_load_string($this->getReplies());
 
        //Opens the lastreply file which contants the
        //id of the last mentioned tweet.
        $this->lastID = file_get_contents("lastreply.txt");
 
        //If the file is empty (probably the first time
        //you are using the script). It will pull the
        //newest mention id from your twitter feed and
        //store it in the file.
        if ($this->lastID == null) {
            $this->lastID = $this->xml->status[0]->id;
            $full = "@" . $this->xml->status[0]->user->screen_name .
                    ": " . $this->xml->status[0]->text;
            $this->prowl($full);
            $this->updateNewest($this->xml->status[0]->id);
        }
 
        //Checks for new Twitter Mentions.
        $this->checkForUpdates();
    }
 
    /**
     * Checks for updates.
     */
    function checkForUpdates() {
        //first run boolean.
        $first = true;
 
        //For each mention in the XML array, check to see if
        //the current ID is greater then the last recorded ID.
        //If it is, push the current Tweet to Prowl, if it isn't,
        //check to see if it is the first run, if it is, break out
        //of the for loop, if it isn't the first run, update the
        //lastreply.txt file and break from the forloop.
        for ($i = 0; $i < 10; $i++) {             $curr = $this->xml->status[$i]->id;
            if ($curr > $this->lastID) {
                $first = false;
                $full = "@" . $this->xml->status[$i]->user->screen_name .
                        ": " . $this->xml->status[$i]->text;
                $this->prowl($full);
            } else {
                if ($first) {
                    break;
                } else {
                    $this->updateNewest($this->xml->status[($i - 1)]->id);
                    break;
                }
            }
        }
    }
 
    /**
     * Writes the newest @reply id to a file.
     */
    function updateNewest($id) {
        $file = fopen("lastreply.txt", "w");
        fwrite($file, $id);
        fclose($file);
    }
 
    /**
     * Push the Tweet to Prowl. This code is modified from
     * example.php in the ProwlPHP API Wrapper.
     */
    function prowl($tweet) {
 
        $this->prowl->push(array(
            'application' => 'Twitter',
            'event' => 'Reply',
            'description' => $tweet,
            'priority' => 0,
                ), true);
    }
 
    /**
     * Gets replies from Twitter. In order to grab replies, you
     * must be authenticated.
     */
    function getReplies() {
        $twitterHost = "http://twitter.com/statuses/mentions.xml";
        $curl;
        $curl = curl_init();
        curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 2);
        curl_setopt($curl, CURLOPT_HEADER, false);
        curl_setopt($curl, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($curl, CURLOPT_USERPWD, "$this->tUser:$this->tPass");
        curl_setopt($curl, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
        curl_setopt($curl, CURLOPT_URL, $twitterHost);
        $result = curl_exec($curl);
        curl_close($curl);
        header('Content-Type: application/xml; charset=ISO-8859-1');
        return $result;
    }
}

*/10 * * * * curl /path/to/replies.php