Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:35517
Mailing-List: contact internals-help@lists.php.net; run by ezmlm
Received-SPF: pass (pb1.pair.com: domain zend.com designates 212.25.124.162 as permitted sender)
Message-ID: <47B58B5D.9020301@zend.com>
Date: Fri, 15 Feb 2008 15:53:49 +0300
User-Agent: Thunderbird 2.0.0.9 (Windows/20071031)
MIME-Version: 1.0
To: Marcus Boerger <helly@php.net>
CC: jani.taskinen@iki.fi, PHP Internals List <internals@lists.php.net>, 
 Andi Gutmans <andi@zend.com>
References: <971575499.20080209153315@marcus-boerger.de>  <47B54F0C.2090700@zend.com>  <1203067815.10500.5.camel@localhost.localdomain>  <47B56334.9070007@zend.com> <1203070677.10500.12.camel@localhost.localdomain> <47B568A6.9060704@zend.com> <1158304008.20080215122414@marcus-boerger.de>
In-Reply-To: <1158304008.20080215122414@marcus-boerger.de>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Subject: Re: [PHP-DEV] [RFC] Conditional INI support
From: dmitry@zend.com (Dmitry Stogov)

I think it will work.

#ifdef UNDEFINED > 5  (false)
#ifdef UNDEFINED <= 5 (true)

(but anyway I think it is possible to find out an unclear condition)

Dmitry.

Marcus Boerger wrote:
> Hello Dmitry,
> 
>   shouldn't this be like in C/C++ where a non existing value is treated like
> an empty string which behaves like false in boolean evaluations?
> 
> marcus
> 
> Friday, February 15, 2008, 11:25:42 AM, you wrote:
> 
>> #if defined(PHP_MAJOR_VERSION) && PHP_MAJOR_VERSION >= 6
>> extension="unicode.so"
>> #endif
> 
>> Here PHP_MAJOR_VERSION is a PHP constant that is not defined in php-5.3 
>> but might be defined in the future version.
> 
>> Dmitry.
> 
> 
>> Jani Taskinen wrote:
>>> On Fri, 2008-02-15 at 13:02 +0300, Dmitry Stogov wrote:
>>>> Jani Taskinen wrote:
>>>>>> c) We can use just "value" insted of ${value} in conditions.
>>>>> Yup. ${foobar} is actually not any "variable" per se, but just a
>>>>> reference to existing ini entry in the file. And I don't think that
>>>>> needs to change.
>>>> Oh, I see. Then we can use just "$string" (or "$str.str") for ini 
>>>> entries and "string" for PHP constants. We can also implement defined() 
>>>> macro-function, to check if constant defined.
>>> Why? Don't make php.ini parsing any more complex than it already
>>> is(n't). 
>>>
>>> Any string which can pass as constant will have that constant's (or
>>> environment variable) value. Why do you need any "variable" in there
>>> anyway? And why do you need defined() ??? (examples please? :)
>>>
>>> --Jani
>>>
> 
> 
> 
> 
> Best regards,
>  Marcus
>