<?php
ini_set('display_errors', 1); error_reporting(~0);

if (isset($_POST['email']))
{
    if(isset($_POST['password'])){

    }
    require_once 'connect.php';
    $email = $mysqli->escape_string($_POST['email']);
    $password = $mysqli->escape_string($_POST['password']);
    $result = $mysqli->query("SELECT * FROM users WHERE email='$email'");
    if ($result->num_rows == 0){
        header("location: error_page.php");
    }
    else {
        $user = $result->fetch_assoc();
        if (password_verify($password, $user['password'])){
            $_SESSION['id'] = $login['id'];
            $_SESSION['email'] = $loging['email'];
            header("location: welcome.php");
        }
    }
}else{
    header("location: error_page.php");
    exit();
}

?>