Steps to test PermissionsHandler script:
$ git clone [email protected]:umpirsky/symfony-standard.git symfony-standard.dev
$ cd symfony-standard.dev
$ git checkout feature/permissions-handler
$ composer install
$ cd web
$ php -S localhost:8888
$ chromium-browser http://localhost:8888/config.php (or whatever web browser)
If you see Your configuration looks good to run Symfony.
then it works.
If you get any errors, please report them on https://github.com/umpirsky/PermissionsHandler/issues/new.
Thanks.