Description:
------------
@include options to split large PHP.INI to PHP.SECTION.INI

It would be nice to have a 'include' directive, so we can split a php.ini
into different configuration files.  It should work with cli, cgi and mod-php
as it should included .ini files should be able to override options.
Directives which do override a setting, should throw an notice, unless the
are set as @override option = ... 


Test script:
---------------
1. Sample of @include:

php.ini with:

...
safe_mode_gid = On
expose_php = On
...

;;;;;;;;;;;;;;;;;;
; Include of other .ini
;
@./php.session.ini
@./php.mysql.ini
@./php.mysqli.ini

2. Sample of @override

file: php.custom.ini

@override memory_limit = 512M