drupal csv import

function sony_import_upload(){

    $form = array();

    $form['desc'] = array(

     '#markup' => '<table><tbody>
                    <tr><td>Username</td><td>Category</td><td>Points</td><td>Date</td></tr>
                    <tr><td>aa01</td><td>SonyMobileOnTour</td><td>100</td><td>01 Jan 2012</td></tr>
                    <tr><td>Kemmy</td><td>OverAndAbove</td><td>200</td><td>01 Mar 2012</td></tr>
                    </tbody>
                    </table>
                    <p> The categories allowed are: General, Bonus, QuizEntry, QuizCorrect, MysteryShop, SonyMobileOnTour, OverAndAbove, TrainingSession, SonyEvent, SocialMediaChallenge.</p>'
    );
    $form['import']['file_upload'] = array(

    '#type' => 'file',
    '#title' => t('CSV File'),
    '#size' => 40,

  );

  $form['submit'] = array(
      '#type' => 'submit',
    '#value' => 'Import',
  );


  // set the form encoding type
  $form['#attributes']['enctype'] = "multipart/form-data";

    return $form;

}



function sony_import_upload_submit($form, &$form_state) {

    $dest_dir = file_default_scheme() . '://';
    $validators = array('file_validate_extensions' => array('csv'));
    if ($file = file_save_upload('file_upload', $validators, $dest_dir)) {
        $url = file_create_url($file->uri);

        sony_import_points ($url);
    } else {
        form_set_error('Error','');
    }


}


function sony_import_points ($file){

    ini_set('auto_detect_line_endings', true);
    $handle = fopen($file, "r");
    $cur_time = time();

    $badUsers = array();

    while (   ( $data =  fgetcsv($handle, 0, ",")) !== FALSE){
        $query = db_select('users','u');
        $query->fields('u',array('uid','created'));
        $query->condition('name',$data[0]);
        $user = $query->execute()->fetchAssoc();
        if (!$user) {
            $badUsers[] = $data[0];
        }
        if ($user && is_numeric($data[2])) {
           $date_approve = strtotime('+3 month',$user['created']);
           $timestamp = strtotime($data[3]);
//                echo '<pre>';
//                var_dump($data[3]);
//                echo '</pre>';
//                exit;
        if ($cur_time < $date_approve) {
            $moderate = 1;
        } else {
            $moderate = 0;
        }

         $params = array(

            'points'          => $data[2],
            'uid'             => $user['uid'],
            'operation'       => 'admin',
            'description'     => $data[1],
            'reference'       => '',
            'time_stamp'      => $timestamp,
            'approver_uid'    => 1,
            'moderate'        => $moderate,
             );
            userpoints_userpointsapi($params);

      }

    }

    drupal_set_message('Import has been completed!','status');
    if (!empty($badUsers)) {

        drupal_set_message('Users do not exist: ' . implode(', ', $badUsers),'warning');
    }

}