//populate dropdown

 <div class="row">
        <div class="col-25">
        <p><label for="Nom">ID: <span>*</span> <br></label>
        </div>
       
        <div class="col-75">
<? global $wpdb;
 $result = $wpdb->get_results ( "SELECT id FROM khdata" );
	

echo "<select name=\"khid\">"; 
foreach ( $result as $print )   {
  echo "<option value='".$print->id."'>".$print->id."</option>"; 
	// echo $print->id;
}
echo "</select>"; ?> </div>
          </div>