What if by type hint a parameter, php automatically tries to convert the
argument into that type and throws an exception ONLY if it couldn't be done?
for example:
function concat(string $a, string $b)
{
return $a.$b;
}
I can do:
concat(1,'1');
concat(2.5,' pigs');
concat(new ConvertibleToStringObject, 15);
But if I do:
concat(new NonConvertibleToStringObject, 15);
PHP throws an exception saying the function needs a string, but the
parameter couldn't be converted...
Can this make everybody happy?
Cheers,
Saulo Vallory
On Wed, Jun 18, 2008 at 9:30 PM, Edward Z. Yang <
[EMAIL PROTECTED]> wrote:
> Fabrice VIGNALS wrote:
> > In mathematic, equal meen the same value AND the same nature.
> > The follow fact could be frustrating :
>
> Usually, context is good enough to disambiguate between the cases. The
> most prevalent convention in programming languages is = is assignment,
> and == is comparison (PHP adds === only because of its type-juggling
> system). Other languages have = as comparison, and := as assignment.
> Donald Knuth uses = as comparison, and a left arrow (<-) for assignment.
>
> --
> Edward Z. Yang GnuPG: 0x869C48DA
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