The number of variations on PHP applications are infinite:

1. Apache or Nginx+PHP-FPM 2. INI Configuration 3. PHP Extensions and their INI configuration 4. Vhost Configuration, especially rewriting rules 5. Docroot in app root, or dedicated directory

This cant possible be defined in a common/generic way and supporting more than 50% of the use-cases.

There is a reason why complex click to configure interfaces exist for PHP and Vagrant with Phansible http://phansible.com/ and PHPuppet.