<?php session_start(); include 'user.php'; if (isset($_POST['ok'])) { if (!isset($_POST['mail']) || empty(trim($_POST['mail']))) { $_SESSION['mail'] = "plz,enter your email"; header('location:login.php'); } else { if (!isset($_POST['pass']) || empty(trim($_POST['pass']))) { $_SESSION['pass'] = "******"; header('location:login.php'); } else { $user = new User(); $is_exist = $user->checkBeforeLogin($_POST['mail'], $_POST['pass']); if (!$is_exist) { $_SESSION['mail'] = "email or password is invalid"; header('location:login.php'); } else { $user = new User(); $user->getUser($_POST['mail']); $_SESSION['user_id'] = $user->id; //echo "<meta http-equiv='Refresh' content='0;url=index.php' />"; //die(); } } } } else { header("location:register.php"); }