<ul class="nav navbar-nav">

                  <?php 

                  $menusor=mysql_query("SELECT * FROM menuler where menu_bolum='AnaMenu' ORDER BY `menuler`.`menu_adi` ASC");
                  while ($menucek =mysql_fetch_array($menusor)) { 
                  $altmenusor=mysql_query("SELECT * FROM menuler WHERE menu_bolum='AltMenu' and menu_katid='".$menucek['menu_id']."' ");
                  ?>

                  <li class="dropdown">

                    <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false"><?php echo $menucek['menu_adi']; ?> 
                    
                    <?php if(mysql_num_rows($altmenusor)!=0){?>
                      <span class="caret"></span>
                    <?php } ?>

                    </a>
                  
                    <?php if(mysql_num_rows($altmenusor)!=0){?>
                    <ul class="dropdown-menu">

                      <?php
                      
                      while ($altmenucek=mysql_fetch_array($altmenusor)) { ?>
                      
                        <li><a href="#"><?=$altmenucek['menu_adi']?></a></li>

                      <?php 
                    }
                    ?>

                  </ul>
                  <?php } ?>
                </li>
                  
                  <?php } ?>

              </ul>