Untitled

<?php
session_start();
require 'functions.php';
//cek cookie
if(isset($_COOKIE['id']) && isset($_COOKIE['key']) ){
  $id = $_COOKIE['id'];
  $key = $_COOKIE['key'];
  //ambil username berdasarkan id
  $result= mysqli_query($conn, "SELECT username FROM user WHERE id='$id'");
  $row = mysqli_fetch_assoc($result);

  //cek cookie dan username
  if ($key === hash('sha256', $row['username'])) {
    $_SESSION['login'] = true;
  }

}


//cek tombol masuk sudah ditekan atau belum
if ( isset($_POST["masuk"])) {
  $username = $_POST["username"];
  $password = $_POST["password"];

  $result = mysqli_query($conn, "SELECT * FROM user WHERE
    username='$username'");
    //cek username
    if (mysqli_num_rows($result) === 1) {
      //cek password
      $row = mysqli_fetch_assoc($result);
      if (password_verify($password, $row['password']))
      //set session
      $_SESSION["login"]= true;

      //   header("Location: index.php");
      //   exit;
      // }


  }

  //cek remember me
  if (isset($_POST["remember"])) {
    //buat cookie

    setcookie('id', $row['id'], time()+60);
    setcookie('key', hash('sha256',$row['username']), time()+60);
    if ($_POST["username"] == "admin" && $_POST["password"] == "admin") {
      header("Location: indexadmin.php");
      exit;
    } else {
      header("Location: index.php");
      exit;
    }
}
  }

  if (isset($_SESSION["login"])) {
    if ($_POST["username"] == "admin" && $_POST["password"] == "admin") {
      header("Location: indexadmin.php");
      exit;
    } else {
      header("Location: index.php");
      exit;
    }
}

if (isset($_POST["daftar"])) {
  header("Location: registrasi.php");
  exit;

}


 ?>

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>Halaman Login</title>
    <link rel="stylesheet" href="../css/login.css">
  </head>
  <body>
    <h2>LibrarIH</h2>
    <h1>selamat datang <br>di perpustakaan <br>itikurih hibarna</h1>
    <?php if (isset($error)): ?>
      <p style="color:red; font-style:italic">Username/password salah!</p>
    <?php endif; ?>
    <form class="form" action="" method="post">

    <input type="text" name="username" id="username" placeholder="nama pengguna">
    <input type="password" name="password" id="password" placeholder="kata sandi"><br>
    <td>
    <input type="checkbox" name="remember" id="remember">
    <label class="remember"for="remember">Ingat Saya</label></td><br>
    <button  "button"type="submit" name="masuk">masuk</button> <br>
    <label for="daftar">belum punya akun?</label> <br>
    <a href="../nyoba/registrasi.php"><button type="submit" name="daftar"> daftar</button></a>


    </form>
  </body>
</html>