$email = $_POST['email'];
$password = md5($_POST['password']);
$checkUser = mysqli_query($connect, "SELECT * FROM `users` WHERE `email` == '$email' AND `password` == '$password'");
if (mysqli_num_rows($checkUser) > 0) {
} else {
$_SESSION['messageL'] = "Не верный логин или пароль";
// header("Location: /login/index.php");
}