login

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>Uangku | App Untuk Monitor Transaksi</title>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="css\index.css">
</head>

<?php
    $conn = mysqli_connect("localhost","root","","nabung");
    $error = "";

    if(isset($_POST['submit'])) {
        $username = mysqli_real_escape_string($conn,$_POST['username']);
        $password = mysqli_real_escape_string($conn,$_POST['password']);

        $cekUser = "SELECT * FROM USER WHERE username = '$username' AND password = '$password'";
        $cekUserQuery = mysqli_query($conn,$cekUser);
        if(mysqli_num_rows($cekUserQuery) == 1) {
            session_start();
            $_SESSION['username'] = $username;
            $_SESSION['password'] = $password;
            header("location:main.php");
        } else {
            $error = "Username atau Password Salah";
        }
    }
?>

<body>
    <form method="post">
        <?php echo '<p class="error">'.$error.'</p>';?>
        <label>Masukkan Username :</label>
        <input class="form-control" type="text" name="username" placeholder="Username..." required>
        <label>Masukkan Password :</label>
        <input class="form-control" type="password" name="password" placeholder="Password..." required>
        <label><input type="checkbox">Ingat Saya</label>
        <button name="submit" type="submit">Login</button>
    </form>
</body>
</html>