Untitled

<?php
session_start();
if(isset($_SESSION['login'])){
   header("Location: Stranka.php");
  }
?>
<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <link rel="stylesheet" type="text/css" href="Loginstyle.css">
        <title>Administrace</title>
    </head>
    <body>
        <div id="Login">
            <div class="logintext">

                <form method="POST">
                    <label for="name"><font size="5.5" color="white"><b>Jméno: </b></font></label>
                    <input type="text" name="name" placeholder="username">
                    <br>
                    <label for="pass"><font size="5.5" color="white"><b>Heslo:&nbsp;&nbsp;</b></font></label>
                    <input type="password" name="pass" placeholder="password">

                    <input type="submit" name="check" value="Přihlásit se">

                </form>

            </div>
        </div>
        <?php
        $password = 'mysqlerror404';
        $username1 = 'root';
        $usernamefake = 'admin';
        $passwordfake = 'admin1234';


        if (isset($_POST['check'])) {
            $username = htmlspecialchars($_POST['name']);


            if ($_POST['name'] == $username1 && $_POST['pass'] == $password) {
                $_SESSION['login'] = "root";
                header("Location: Stranka.php");
                die();
            } else if ($_POST['name'] == $usernamefake && $_POST['pass'] == $passwordfake) {
                $_SESSION['login'] = "admin";
                header("Location: http://google.com");
                die();
            } else {
                echo "<b><center><font color='white'>Chybné uživatelské jméno nebo heslo !</font></center></b>";
            }
        }
        ?>
    </body>
</html>