model/sertifikat

<?php
class sertifikat {
    function getDataSertifikat(){
          global $db;
          $sql = "SELECT srt.*,us.username from user_sertifikat as srt  inner join user as us on
                    us.id_user=srt.pemegang_sertifikat";
          $rs  = $db->Execute($sql);
          if(!$rs) {
            return $db->ErrorMsg();
          }
          else {
            return $rs;
          }
    }
}
?>