Am 22.12.2011 19:41, schrieb Rasmus Lerdorf:
> This is not a step forward. If the author of age_check() really doesn't
> want to accept type-juggled arguments, then it is easy enough to do a
> strict type check in the function itself. This puts the effort in the
> correct place and doesn't encourage this type of coding.
Putting such code into the "correct" place does not change the problem
that you and Stas describe
function age_check($age)
{
if (!is_int($age)) {
throw new InvalidArgumentException;
}
}
With the above code, the caller needs to cast and the writer of the
age_check() function has to copy/paste/adapt these checks to all the
correct places ...
I am not advocating type hints for scalars, I am just saying that this
argument is not really a good one against it.
--
Sebastian Bergmann Co-Founder and Principal Consultant
http://sebastian-bergmann.de/ http://thePHP.cc/
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