Visiting a .php url results in downloading the file instead of running it. How to reproduce: ``` #installed symfony cli tool: sudo mkdir -p /usr/local/bin sudo curl -LsS https://symfony.com/installer -o /usr/local/bin/symfony sudo chmod a+x /usr/local/bin/symfony #create a new symfony 3.4 project: symfony new blog 3.4 cd blog composer install --prefer-dist #run ppm-nginx docker docker run -v `pwd`:/var/www -p 8080:80 phppm/nginx #visit .php file: http://localhost:8080/web/app.php ``` This results in downloading the .php file and not running the code. At least we should block downloading of .php and other relevant types. Ideally we should be able to run them. Thanks