<?php if (file_exists('../vendor/autoload.php')) { require '../vendor/autoload.php'; } else { echo "<h1>Please install via composer.json</h1>"; } use MattMVC\Core\Debug; use MattMVC\Core\App; Debug::register(); define('ENVIRONMENT', 'development'); if (defined('ENVIRONMENT')) { switch (ENVIRONMENT) { case 'development': break; case 'production': Debug::debug(false); //true = show erros; false hide errors break; default: exit('The application environment is not set correctly.'); } } $app = new App();