Untitled

<?php
session_start();
?>

<!doctype html>
<html lang="ru">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>

<form action="/gb.php" method="post">
    Login<input type="text" name="login">
    Pass<input type="password" name="password">
    <button type="submit">Давай</button>
</form>

</body>
</html>