Untitled

<?php
session_start();

if (isset($_SESSION['user'])){
  header("Location: home.php");
}
if (isset($_POST['login'])){
  $user = $_POST['username'];
  $password = $_POST['password'];

  if ($user == "samad" && $password == "root"){
    $_SESSION['user'] = $user;
    echo '<script type="text/javascript"> window.open("home.php","_self");</script>';
  } else {
    echo "failed to login";
  }
}
?>

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
</head>
<body>
  <style>
  .form{
    width: 600px;
  }


input[type=submit] {
  width: 100%;
  background-color: #4CAF50;
  color: white;
  padding: 14px 20px;
  margin: 8px 0;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

input[type=submit]:hover {
  background-color: #45a049;
}

div {
  border-radius: 5px;
  background-color: #f2f2f2;
  padding: 20px;
}
</style>


  <div class="form">
    <h1>Vänligen logga in</h1>
  <form action="home.php">
    <label for="fname">Your Name</label>
    <input type="text" id="fname" name="firstname" placeholder="Your name..">

    <label for="lname">Your Password</label>
    <input type="password" id="lname" name="lastname" placeholder="Your password..">

    <input type="submit" value="Submit">
  </form>
</div>


</body>
</html>