<?php
session_start();
class User
{
    public $errors;
    public $result;
    public $id;
    public $db_pass;

    public function logIn($username, $password)
    {
        if (isset($username) && isset($password)) {
            if (empty($username) || empty($password)) {
                $this->errors = 'Wrong details';
            } else {
                require_once('Database.php');
                $db = new Database();

                $query = $db->prepare(" SELECT * FROM users WHERE username = :username LIMIT 1 ");
                $query->execute([':username' => $username]);
                $fetchHash = $db->fetch(PDO::FETCH_ASSOC);

                if ($query->rowCount()) {
                    $this->result = $query->fetch(PDO::FETCH_OBJ);
                    $this->db_pass = $this->result->password;
                    $this->id = $this->result->id;
                }
                if (password_verify($password, $fetchHash['HASH COLUMN NAME HERE'])) {
                    $_SESSION['username'] = $username;
                    $_SESSION['id'] = $this->id;
                    header('location:index.php');
                }
            }
        }
    } // END OF FUNCTION
} // END OF CLASS