index.php

<?php

session_start();
// Disable Notices

// Is MapleBit installed?
if (!file_exists('assets/config/install/installdone.txt')) {
    header('Location: assets/config/install/install.php');
    exit;
} else {
    // Get Database Information
    require_once 'assets/config/database.php';

    // Import Essential Files
    require_once 'assets/config/properties.php';
    require_once 'assets/config/funcs.php';

    // Define $getbase variable
    $getbase = isset($_GET['base']) ? $_GET['base'] : '';

    $getslug = $mysqli->query('SELECT slug, title, visible from '.$prefix.'pages');
    while ($fetchslug = $getslug->fetch_assoc()) {
        $slugs[] = $fetchslug['slug'];
        $slugarray[] = [$fetchslug['slug'], $fetchslug['title'], $fetchslug['visible']];
    }

    switch ($getbase) {
        case null:
        case 'main':
            include 'sources/structure/header.php';
            include 'sources/public/main.php';
            include 'sources/structure/footer.php';
            break;
        case 'ucp':
            include 'sources/structure/header.php';
            include 'sources/ucp/main.php';
            include 'sources/structure/footer.php';
            break;
        case 'admin':
            include 'sources/structure/admin/header.php';
            include 'sources/admin/main.php';
            break;
        case 'gmcp':
            include 'sources/structure/header.php';
            include 'sources/gmcp/main.php';
            include 'sources/structure/footer.php';
            break;
        case 'misc':
            include 'sources/misc/main.php';
            break;
        default:
            include 'sources/structure/header.php';
            include 'sources/public/main.php';
            include 'sources/structure/footer.php';
            break;
    }
}

$mysqli->close();