A PHP OOP psr-4 auto-loading CRUD app example which uses Steam login authentication from OpenId with xPaw OpenId Steam auth. Includes auto-loading classes for DB actions and for pages.

• Home page (Different message depending on login status).
• Login page (Redirects if already logged in).
• Logout page.
• Account page (Redirects if NOT logged in).
• Account edit page (Redirects if NOT logged in).
• Delete account page (Redirects if NOT logged in).

• Simple check for pages if user is logged in.
• Login (Stores: username, Steam id and first login date in DB).
• Creates a unique 6 character id string for account which is separate to the Steam id.
• Creates a unique 32 character string as an account key.
• Update account (Username, last login and times logged in) on login.
• Edit/Update account email address.
• Delete account (Redirects if not logged in).
• Bootstrap 5.1 included on all frontend pages.

• Run database.sql into your MySQL server.
• Add your MySQL details lines 10-13 src/Config.php.
• Change your URL line 5 src/Config.php.
• Change your assets URL line 6 src/Config.php.
• Add your Steam API key at line 7 src/Config.php.

        if ($this->isLoggedIn()) {
            //Is logged in
        } else {
            //Not logged in
        }

secret/index.php:

<?php
require_once '../vendor/autoload.php';

use frontend\Pages;

$h = new Pages();
$h->secretPage();

src/frontend/Pages.php:

    public function secretPage(): void
    {
        if (!$this->isLoggedIn()) {//Not logged in
            $this->doHeader(self::URL);
        }
        echo "You can see this because you are logged in";
    }