form.php

<form class="form-inline" >
  <div class="form-group">
    <select class="form-control" id="Kolom" name="Kolom" required="">
      <?php
        $kolom=(isset($_GET['Kolom']))? $_GET['Kolom'] : "";
      ?>
      <option value="id_kleuhan" <?php if ($kolom=="id_jenis") echo "selected"; ?>>id_jenis</option>
      <option value="id_jenis" <?php if ($kolom=="id_keluhan") echo "selected";?>>id_keluhan</option>
    </select>
  </div>
  <div class="form-group">
    <input type="text" class="form-control" id="KataKunci" name="KataKunci" placeholder="Kata kunci.." required="" value="<?php if (isset($_GET['KataKunci']))  echo $_GET['KataKunci']; ?>">
  </div>
  <button type="submit" class="btn btn-primary">Cari</button>
  <a href="index.php" class="btn btn-danger">Reset</a>
</form>