<?php

$m = new \MongoDB\Client("mongodb://localhost:27017");
$db = $m->selectDB('strona');
$col = new MongoCollection($db, 'users');


if(isset($_POST['sub_reg'])) {
  $login = $_POST['login'];
  $pass = $_POST['pass'];
  $pass2 = $_POST['pass2'];
  $email = $_POST['email'];
  if($pass==$pass2)
  {
    $pass = md5(sha1($pass), "#$CSasfd!");
    $col->insert(array("login" => $login, "password" => $pass, "email" => $email));
  }




}

if(isset($_POST['sub_reg1']))
{

  $login = $_POST['logowanie'];
  $haslo = $_POST['haslowanie'];

  $user = $db->users->findOne(['login' => $login]);

  if($user !== null &&password_verify($haslo, $user['password'])){

}

}


?>