<select name ="nama_barang" >
           <option>
              Select Barang
           </option>

           <?php
             $host = 'localhost';
             $user = 'root';
             $pass = '';

             mysql_connect($host, $user, $pass);

             mysql_select_db('database');

             $select=mysql_query("select * from table");
             while($row=mysql_fetch_array($select))
             {
              echo "<option>".$row['nama']. "</option>";
             }
           ?>

         </select>