On 19 May 2010 11:21, Tjerk Anne Meesters <datib...@php.net> wrote:
> On Wed, May 19, 2010 at 5:52 PM, Frederic Hardy
> <frederic.ha...@mageekbox.net> wrote:
>> Hello !
>>>
>>> AFAIK class constants are optimized for speed and therefore don't
>>> support expressions; don't expect this to change any time soon ;-)
>>>
>>>> Is there any feature request about constant and expression ?
>>>> I would like to write something like that :
>>>>
>>>> <?php
>>>>
>>>> namespace foo\bar\directories {
>>>> const tmp = __DIR__ . '/tmp';
>>>> }
>>>>
>>>> ?>
>>
>> So the best solution is something like <?php
>> define('foo\bar\directories\tmp', __DIR__ . '/tmp'); ?>...
>> It 's strange that "define()" function can do something that the "const"
>> keyword can't do, even if "const" keyword evaluation is done at compilation
>> time and "define()" evaluation is done at runtime.
>
> That's why there's a cost penalty to using define().
>
> I wrote a small article that gives an idea of the speed differences:
> http://shwup.blogspot.com/2010/04/about-constants.html
>
>
>>
>> Best regards,
>> Fred.
>>
>> --
>> ========================================================================
>> Frédéric Hardy : Architecte d'application/Admin. système/Ergonome
>> Status : En recherche d'emploi
>> ========================================================================
>>
>>
>
>
>
> --
> --
> Tjerk
With regard to HiDef and the hidef.ini_path setting, and the comment
on [1] regarding "However, all this goodness comes with a drawback:
configuration settings are instance wide, which impacts all setups of
PHP that runs beyond a single web request (e.g. Apache module or
FastCGI).", could the ini entry be placed in a ...
[HOST=]
section in the ini file? [2]
If so, could this be the best solution?
Regards,
Richard.
[1] http://shwup.blogspot.com/2010/04/about-constants.html
[2] http://docs.php.net/manual/en/ini.sections.php
--
-----
Richard Quadling
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