if ($data == "unavailable" or $data == "") {
   echo "no ratecenters available there";
} else {
       $did = explode("\n", $data);
       foreach ($dids as $i => $value) {
          $info = $value;
          if ($info != "") {
           list($did,$ratecenter,$rate)= split(",", $info, 3);
           echo "Avaible did's in this City:<option value=""></option><option value="'.$did['dids'].'">' . $did['dids'] . '</option>';
          }
      }
}
?></select>
</td></tr>