login.php

<?php
    include 'lib/library.php';

    sudahLogin();
    if($_SERVER['REQUEST_METHOD']=="POST"){
        $username=$_POST['nama'];
        $password=$_POST['sandi'];
        $sql=" SELECT * FROM t_login WHERE username='$username' AND sandi=SHA1('$password'); ";
        $data=$mysqli->query($sql) or die($mysqli->error);


        if($data->num_rows!=0){
            $row=mysqli_fetch_object($data);
            $_SESSION['nama']=$row->username;
            $_SESSION['sandi']=$row->level;
            header('location:vLogin.php');
        }
        else{
            header('location:login.php');
        }
    }

    include 'views/vLogin.php';
?>