Devise\Support\Installer\InstallerController::getEnvironment PHP Метод

    public function getEnvironment()
    {
        $environment = $this->Input->old('environment', env('APP_ENV'));
        $environment = $environment === 'custom' ? $this->Input->old('custom_environment', 'myenv') : $environment;
        $selectedEnvironment = function ($env, $yes = 'selected', $no = '') use($environment) {
            if (!in_array($environment, ['local', 'staging', 'production'])) {
                return $env == 'local' ? $yes : $no;
            }
            return $env == $environment ? $yes : $no;
        };
        return $this->View->make('devise::installer.environment', compact('environment', 'selectedEnvironment'));
    }