LJ Time Chart

require_once("XML/RPC.php");

class LJ_Client {
  var $if = null;
  var $user = null;
  var $password = null;
  
  function LJ_Client($user=null, $password=null, $proxy_host=null, $proxy_port=null, $proxy_user=null, $proxy_password=null) {
    $this->user = $user;
    $this->password = $password;
    $this->if = new XML_RPC_Client('/interface/xmlrpc', 'www.livejournal.com', 80, $proxy_host, $proxy_port, $proxy_user, $proxy_password);
  }
  
  function getEvents($n = 50, $before = null) {
    if($before == null) {
        $before = date("Y-m-d H:i:s");
    }
    
    $msg = new XML_RPC_Message('LJ.XMLRPC.getevents', 
        array(XML_RPC_encode(array('username' => $this->user,
          'hpassword' => md5($this->password), 
          'selecttype' => 'lastn', 
          'howmany' => $n,
          'ver' => 1,
          'beforedate' => $before))));
    
     $resp = $this->if->send($msg);
     
     if (!$resp) {
        echo 'Communication error: ' . $this->if->errstr;
        exit;
    }
    
    if (!$resp->faultCode()) {
        $val = $resp->value();
        $data = XML_RPC_decode($val);
        return $data['events'];
    } else {
        /*
         * Display problems that have been gracefully cought and
         * reported by the xmlrpc.php script
         */
        echo '<b style="color:#f00;">';
         echo 'Fault Code: ' . $resp->faultCode() . "\n";
        echo 'Fault Reason: ' . $resp->faultString() . "\n";
        echo '</b>';
    }      
  }
}

$user = $_REQUEST['user'];
$pass = $_REQUEST['password'];

$c = new LJ_Client($user, $pass);

$events = $c->getEvents(50);

while($o = end($events)) {
    $ldate = $o['eventtime'];
    $r = $c->getEvents(50, $ldate);
    if(sizeof($r) == 0) {
        break;
    } else {
        $events = array_merge($events, $r);
    }    
}

$h_dist = array();

foreach ($events as $e) {
  $h = (int)current(split(':', end(split(' ', $e['eventtime']))));
  $h_dist[$h]++;  
}