and as far as i know, perl's 'strict mode' has absolutely
nothing to do with typing of variables...
use strict; will force you to define all variables
with "my $var;" or "local $var;" before you assign values
to them or try and use them... but it doesnt do anything
about enforcing typing...
in perl 6, i think that plans are under way to add
extensions that will let people strongly-type
variables if they want (but it still wont be mandatory)
example: my integer $number = 5;
would stronlgy-type that variable as an integer, and
you wouldnt be able to assign any other type of value
to it without an error. but i dont know how far the
developers will go towards realizing strongly-typed
extensions to perl...
as rasmus said... it's incredibly hard to have it both
ways. the freedom of perl and PHP largely comes from
*not* having to always worry about variable typing,
memory allocation/cleanup and all those other nitpicky
low-level things that BDSM ... errr.... C programmers
seem to love :-)
> -----Original Message-----
> From: Rasmus Lerdorf [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, July 12, 2001 8:15 PM
> To: Dr. Evil
> Cc: [EMAIL PROTECTED]
> Subject: Re: [PHP] Strong typing?
>
>
> > PHP is a great language. It makes it fast and easy to create web
> > pages. However, one feature which is critical for doing rock-solid
> > stable websites is strong typing. The reason for this is that you're
> > dealing with untrusted user input. Strong typing helps because if you
> > are expecting an INT, and the user gave you something else, and you
> > made a mistake in your input checking, the program will fail when you
> > attempt to assign the value to the strongly-type INT variable. This
> > is a good thing when you are dealing with money, or other contexts
> > where you need very solid code.
> >
> > First, is there a plan to introduce a strong typing option, like
> > perl's strict mode?
> >
> > Second, is there a way to get something equivalent to strong typing
> > using the class system?
>
> You can't really have it both ways. And no, there is no plan to implement
> strong typing.
>
> -Rasmus
>
>
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