Added "detection" of open_basedir and php:// protocol:

Added "detection" of open_basedir and php:// protocol:
- common way to inject php.ini settings which overrides them and then try to
  inject external code (remote inclusion)
- don't do such things as http://host.example/script.php?bla=php://input

Signed-off-by: Roland Häder <roland@mxchange.org>