jenis-menu-update.php

<?php
  session_start();
  include "koneksi.php";
  $id_jenis_menu  = $_POST['id_jenis_menu'];
  $jenis_menu     = $_POST['jenis_menu'];
  $jenis_menu1    = $_POST['jenis_menu1'];

  if($jenis_menu != $jenis_menu1){
    $sql 		= "SELECT * FROM tbl_jenis_menu WHERE jenis_menu = '$jenis_menu' ORDER BY jenis_menu";
    $query 	= mysqli_query($koneksi, $sql);
    if(mysqli_num_rows($query)>0){
      $_SESSION['info'] = 'Gagal Diupdate';
    }else{
      $sql = "UPDATE tbl_jenis_menu SET 
        jenis_menu  = '$jenis_menu'
      WHERE id_jenis_menu = '$id_jenis_menu'";
      mysqli_query($koneksi, $sql);
      $_SESSION['info'] = 'Diupdate';
    }
  }else{
    $_SESSION['info'] = 'Gagal Diupdate';
  }
  header("location:jenis-menu.php");
?>