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Date: Tue, 12 May 2015 13:57:49 -0600
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To: Lester Caine <lester@lsces.co.uk>
Cc: "internals@lists.php.net" <internals@lists.php.net>
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Subject: Re: [PHP-DEV] is_digits() and digits type
From: derokorian@gmail.com (Ryan Pallas)

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On Tue, May 12, 2015 at 1:27 PM, Lester Caine <lester@lsces.co.uk> wrote:

> On 12/05/15 19:55, Rowan Collins wrote:
> > For instance, valid input for a 64-bit signed integer in a database
> could include:
> > - any PHP native integer (assuming nobody builds with 128-bit ints!)
> > - any string consisting of all digits, such that when interpreted as an
> integer the value won't exceed 2^64-1
> > - any string consisting of a '-' followed by digits, such that the
> magnitude of the integer interpretation wouldn't exceed 2^64
> > - any PHP float with no fractional part, maybe capped to a magnitude
> less than 2^53 for safety
>
> BUT
> In INTEGER in a database is 32 bit and will remain 32 bit, just as
> SMALLINT is 16 bit ... 64 bit is BIGINT and so the whole concept of
> simply ignoring 32 bit and handling them instead as 64bit is wrong!
> So type hints are broken before they start!
>

You should handle sanitizing data for you external storage specific to the
external storage you're using and not expect the language to do it for you.

>
> --
> Lester Caine - G8HFL
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