Posted by gosha bine on 08/02/07 08:21

On 02.08.2007 04:55 Yarco wrote:
> Array is the very basic type in php i think. So why const keyword
> doesn't support such defination grammar?
>
> class Date
> {
> const char3 = array(1 => 'Jan', ...); // ??
> }
>
> So how can i do somthing like c++'s enum?
>
> class Data
> {
> const Jan = 1;
> //...
> }
>
> is poor if i want to chanslate number to month name.
>

The reason of disabling arrays was that parser wasn't able to parse
"someConst[key]" correctly.

http://bugs.php.net/bug.php?id=25816

As to enums, they are used in C to give symbolic names to integer
constants. In php constants don't have to be integer, that is we can
simply use strings instead of symbolic names:

// c way

const BY_NAME = 1;
....
if($sort_mode == BY_NAME) ...


// php way

if($sort_mode == 'BY_NAME') ...


ruby's interned strings (:BY_NAME) would be even better, unfortunately
php doesn't support this

--
gosha bine

makrell ~ http://www.tagarga.com/blok/makrell
php done right ;) http://code.google.com/p/pihipi

• Next in forum: Re: [Curiosity] Errors in the bible.... an illustration.
• Prev in forum: Re: am I doing unnecessary operations by mysql_fetch_array?
• Thread view: Re: How about const supporting array in future?

[Reply to this message]