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Date: Wed, 1 Jul 2009 13:45:01 -0400
Cc: PHP internals <internals@lists.php.net>
Subject: Re: [PHP-DEV] RFC: Type hinting revisited for PHP 5.3
From: ilia@prohost.org (Ilia Alshanetsky)

If you use int type hit "1" will be rejected, but if use numeric type  
hint it will be accepted.

Ilia Alshanetsky


On 2009-07-01, at 1:23 PM, Paul Biggar <paul.biggar@gmail.com> wrote:

> Hi Ilia,
>
> This is great.
>
> On Wed, Jul 1, 2009 at 5:59 PM, Ilia Alshanetsky<ilia@prohost.org>  
> wrote:
>> I've taken a few hours this morning to port my 5.2 type hinting  
>> patch to
>> 5.3. In recognition of a need for a more 'flexible' numeric type I've
>> introduced (numeric) type hint that would allow bool/int/float data  
>> types as
>> well as a string containing a numeric entity as identified by
>> is_numeric_string(). For completion i've also added (scalar) data  
>> type that
>> will allow any scalar data element.
>
> I think this will go a long way to addressing people's concerns when
> this came up previously.
>
>
>> The patch is available here: http://ia.gd/patch/type_hint_53.txt
>
> I presume the idea is that some people (if they so chose) would want
> to type hint every parameter in their program. To facilitate this, I
> might suggest a "mixed" hint (like in the docs), and a null hint
> (though I'm not sure if it would be called "null" or "unset" or both).
>
>
> Finally, I don't want to ruin this, but last time there was
> disagreement over whether numbers should be coerced to the specified
> types, or left alone. What does your patch do?
>
> ie function x (int $x) { echo is_int ($x); } x ("5");
>
>
>
> Thanks,
> Paul
>
>
>> It should be noted that this is not the first idea for type hints,  
>> that
>> credit goes to Hannes Magnusson who had posted a similar patch on the
>> internals list back in 2006. Also, back in 2008 Felipe Pena wrote a  
>> type
>> hinting patch for PHP that is available on wiki.php.net.
>> --
>> PHP Internals - PHP Runtime Development Mailing List
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>>
>>
>
>
>
> -- 
> Paul Biggar
> paul.biggar@gmail.com