library function

    <?php
    session_start();
    function base_url(){
        return "http://localhost/pwpb";
    }
    function flash($tipe, $pesan = ''){
        if (empty($pesan)) {
            $pesan = @$SESSION[$tipe];
            unset($_SESSION[$tipe]);
            return $pesan;
        }
        else{
            $_SESSION[$tipe] = $pesan;
        }
    }
    function cekLogin(){
        $username = @$_SESSION['username'];
        $level = @$_SESSION['level'];

        if (empty($username) and empty($level)) {
            header('location:login.php');
        }
    }
    function sudahLogin(){
        $username = @$_SESSION['username'];
        $level = @$_SESSION['level'];

        if (!empty($username) and !empty($level)) {
            header('location:login.php');
        }
    }


    $host   = 'localhost';
    $user   = 'root';
    $pass   = '';
    $db     = 'db_pwpb';

    $mysqli = mysqli_connect($host, $user, $pass, $db) or die('Tidak dapat koneksi ke Database');
?>