oficial/setup/app.php

<?php
use DI\ContainerBuilder as Builder;
use DI\Bridge\Slim\Bridge;

include_once 'composer.php';

$folders = [
  'settings',
  'setups'
];
$builder = new Builder();
if (isset($__environment)) {
    $builder->addDefinitions(['environment' => $__environment]);
}
foreach ($folders as $f) {
  $folder = implode(DIRECTORY_SEPARATOR, [
    __DIR__,
    $f
  ]);
  if (!file_exists($folder)) {
    continue;
  }
  $files = new DirectoryIterator($folder);
  foreach ($files as $file) {
    if ($file->isDir() or $file->getExtension() != 'php') {
      continue;
    }
    $builder->addDefinitions($file->getRealPath());
  }
}

$container = $builder->build();
$app = Bridge::create($container);
if ($app->getContainer()->has('base_url') and $app->getContainer()->get('base_url') != '') {
  $app->setBasePath($app->getContainer()->get('base_url'));
}
$app->addRoutingMiddleware();

foreach ($folders as $folder) {
  $filename = implode(DIRECTORY_SEPARATOR, [
    __DIR__,
    $folder,
    'middleware.php'
  ]);
  if (!file_exists($filename)) {
    continue;
  }
  include_once $filename;
}

$app->addErrorMiddleware(true, true, true);

include_once 'database.php';

include_once 'router.php';

return $app;