auth.php

<?php
require_once '../Log.php';
require_once '../Input.php';
class Auth
{
	public static $password = '$2y$10$SLjwBwdOVvnMgWxvTI4Gb.YVcmDlPTpQystHMO2Kfyi/DS8rgA0Fm';
	public static function attempt($username, $password)
	{
			$log = new Log;
		if($username == 'guest' && password_verify($password,
		 self::$password)) {

			$_SESSION['logged_in_user'] = $username;

			$log->info('User ' . $username . 'logged in');

		} else {

			$log->error('User'. $username . 'failed to log in!');
		}

	}

	public static function check()
	{
		if (isset($_SESSION['logged_in_user'])) {

			return true;

		} else {

			return false;
		}

	}
	public static function user()
	{

		return $_SESSION['logged_in_user'];

	}
	public static function logout()
	{
		session_unset();
		session_regenerate_id(true);
	}
}