<?php
   $server = "localhost";
   $user = "root";
   $pass = "";
   $db = "login";

   $database = new mysqli($server, $user, $pass, $db);
   /*********************************************************/

   $option = '<option value=""> - Data leased Line - </option>';

   $jk = isset($_GET['jk']) ?  $_GET['jk'] :'';
   $sql = "SELECT id_sm,id_pekerjaan,nm_sm,nm_pekerjaan FROM `tswisma` INNER join pekerjaan on tswisma.id_sm=pekerjaan.id_sm where id_sm='".$jk."'";
   if($res = $database->query($sql)) {
      while ($row = $res->fetch_assoc()) {
         $option .= "<option value='".$row['id_pekerjaan']."'>".$row['nm_pekerjaan']."</option>";
      }
   }
   echo $option;
?>