Select automatico tramite form PHP

[Alhazred]

<select>
   <option <?php echo $_GET['capo'] == 'pippo' ? 'selected' : '' ?> >pippo</option>
   <option <?php echo $_GET['capo'] == 'paperino' ? 'selected' : '' ?> >paperino</option>
   <option <?php echo $_GET['capo'] == 'pluto' ? 'selected' : '' ?> >pluto</option>
</select>