reg.php

<?
include("../functions/connectbd.php");

$login=$_POST["login"] ;
$password=$_POST["password"];
$email=$_POST["email"];

echo"<form name=\"registrator\" action=\"#\" method=\"POST\">".
"<input type=\"text\" name=\"login\">".
"<input type=\"password\" name=\"password\">".
"<input type=\"email\" name=\"email\">".
"<input type=\"submit\" name=\"reg\" value=\"Регистрация\">".
"</form>";

if(isset($_POST["reg"])){
    if(empty($_POST['login']||$_POST['password']||$_POST['email'])){
        echo"поле не должно быть пустым";
}else{
    mysqli_query($connect, "INSERT INTO `User`(`id`, `login`, `password`, `email`) VALUES ('[value-1]','$login','$password','$email')");
    $_SESSION["login"]=$_POST["login"];
    $_SESSION["password"]=$_POST["password"];
    header('Location : index.php');
    }
    }
?>