$apiKey      = 'YOUR API KEY';
$username    = 'USER THAT YOU WANT TO LOGIN';
$password    = 'USER PASSWORD';
 
/**
 * @author syabac http://blog.syabac.web.id
 */
class Plurk
{
    private $_apiUrl    = 'http://www.plurk.com/API/';
 
    private $_apiKey;
    private $_username;
    private $_password;
 
    public function __construct($apiKey, $user, $pass){
        $this->_apiKey        = $apiKey;
        $this->_username    = $user;
        $this->_password    = $pass;
    }
 
    private function _buildUrl($method, array $params){
        return $this->_apiUrl . $method . '?' . http_build_query($params);
    }
 
    private function _sendRequest($method, array $params){
        $url    = $this->_buildUrl($method, $params);
        $curl     = curl_init();
 
        curl_setopt($curl, CURLOPT_URL, $url);
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
 
        curl_setopt_array($curl, array(
                        CURLOPT_CONNECTTIMEOUT  => 0,
                        CURLOPT_COOKIEJAR       => 'cookies.plurk',
                        CURLOPT_COOKIEFILE      => 'cookies.plurk'
                ));
 
        $response = curl_exec($curl);
        curl_close($curl);
        return $response;
    }
 
    public function login(){
        return $this->_sendRequest('Users/login', array(
                                'api_key'     => $this->_apiKey,
                                'username'    => $this->_username,
                                'password'    => $this->_password
                            )
                        );
    }
 
    public function logout(){
        return $this->_sendRequest('Users/logout', array(
                                'api_key'     => $this->_apiKey
                            )
                        );
    }
 
    public function addPlurk($plurk){
        return $this->_sendRequest('Timeline/plurkAdd', array(
                                'api_key'     => $this->_apiKey,
                                'content'    => $plurk,
                                'qualifier'    => 'says',
                                'lang'        => 'id'
                            )
                        );
    }
}
 
class RandomPlurk
{
    public static function generate(){
        libxml_use_internal_errors(true);
        //You may change the RSS url by editing this line.
        $rss    = simplexml_load_file('http://newsrss.bbc.co.uk/rss/sportonline_world_edition/front_page/rss.xml');
        $items    = $rss->channel->item;
        $item   = $items[mt_rand(0, count($items)-1)];
        return sprintf("%s (%s)", $item->link, $item->title);
    }
}
 
function isSend($delay)
{
    if(! file_exists('last_update.plurk')){
        file_put_contents('last_update.plurk', time());
        return true;
    }
 
    $lastUpdate    = file_get_contents('last_update.plurk');
 
    $delay    = 60 * 60 * $delay;
    $now    = time();
    if( $now - $lastUpdate > $delay){
        file_put_contents('last_update.plurk', $now);
        return true;
    }
    return false;
}
 
 
$delay    = 4; //in HOUR
if(isSend($delay)){
    $status  = RandomPlurk::generate();
 
    $plurk    = new Plurk($apiKey, $username, $password);
    $plurk->login();
    $plurk->addPlurk($status);
    $plurk->logout();
}