tanpa-db.php

<?php
session_start();
require 'config.php';
if ( 
    isset($_POST['username']) && 
    $_POST['username'] == 'admin' &&
    isset($_POST['password']) &&
    $_POST['password'] == '12345'
) { 
     $_SESSION['user_login'] = 'admin';
     $_SESSION['sess_id']    = '001';
     $_SESSION['nama']       = 'Admin';
    header('location:on-admin/');
} else {
    header('location:login.php');
    exit();
}