Lassi\App\Util::setEnvVariables PHP Метод

    public static function setEnvVariables($root = '/')
    {
        $configs = null;
        // Set custom handler to catch errors as exceptions
        set_error_handler(create_function('$severity, $message, $file, $line', 'throw new \\ErrorException($message, $severity, $severity, $file, $line);'));
        if (file_exists($root . '/.dev.env') && is_readable($root . '/.dev.env')) {
            $configs = file_get_contents($root . '/.dev.env');
        } else {
            if (file_exists($root . '/.dist.env') && is_readable($root . '/.dist.env')) {
                $configs = file_get_contents($root . '/.dist.env');
            } else {
                if (file_exists($root . '/.test.env') && is_readable($root . '/.test.env')) {
                    $configs = file_get_contents($root . '/.test.env');
                } else {
                    if (file_exists($root . '/.env') && is_readable($root . '/.env')) {
                        $configs = file_get_contents($root . '/.env');
                    } else {
                        throw new NotFoundException('No configuration file found.');
                    }
                }
            }
        }
        if (false === $configs || null !== error_get_last()) {
            throw new UnreadableException('Configuration not readable.');
        }
        // Restore original error handler
        restore_error_handler();
        $configs = explode("\n", trim($configs));
        array_map(function ($config) {
            // Remove whitespaces
            $config = preg_replace('(\\s+)', '', $config);
            // Add as environment variables
            putenv($config);
        }, $configs);
    }

 /**
  * Bootstrap the framework
  *
  * @return void
  */
 public static function bootstrap()
 {
     /* Load configuration from .dev.env | .dist.env | .env */
     Util::setEnvVariables(dirname(__FILE__) . '/..');
     /* Get instances */
     $lassi = static::getInstance();
     $slim = $lassi->getApp();
     /* Add base URL to all views for assets management */
     $slim->hook('slim.before', function () use($slim) {
         $slim->view()->appendData(array('baseUrl' => getenv('base_url')));
     });
     /* Load routes */
     static::loadRoutes();
     /* Run Slim framework */
     $slim->run();
 }