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Date: Sun, 8 Feb 2015 04:38:27 +0000
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To: Rasmus Lerdorf <rasmus@lerdorf.com>
Subject: Re: [PHP-DEV] [VOTE] Scalar Type Hints
From: ajf@ajf.me (Andrea Faulds)

Hi,

> On 8 Feb 2015, at 03:52, Rasmus Lerdorf <rasmus@lerdorf.com> wrote:
>=20
> On 02/07/2015 09:51 PM, Andrea Faulds wrote:
>>> tan(1);
>>> echo strstr("test", "est", 1);
>>=20
>> Banning int->float and float->int is both a pain point and sometimes =
a life-saver. It=E2=80=99s annoying that tan(1) doesn=E2=80=99t work. On =
the other hand, you discover if your ints floats would be silently =
truncated (as I did with PictoSwap).
>>=20
>> I wouldn=E2=80=99t say that int->string not working is a problem, =
though. Seeing something like strstr(=E2=80=9Ctest=E2=80=9D, =E2=80=9Cest=E2=
=80=9D, 1); is rather confusing. Looking at it, I=E2=80=99d think the =
third parameter is some sort of number for you to want to pass an =
integer to it. If I want a string, I=E2=80=99ll use one.
>=20
> This isn't int->string. This is int->boolean. The 3rd arg to strstr() =
is
> a boolean and passing 1 instead of true makes it blow up. It is very
> very common for people to pass 0 or 1 in place of true/false to all
> sorts of things in PHP.

Oh, my bad, I looked up strtr and not strstr.

I=E2=80=99m not sure that disallowing implicit integer->boolean =
conversion is bad, though. That conversion will discard all data except =
whether the value is non-zero. If you opt in to strict typing, then you =
have chosen to always use the correct types.

>=20
>> Yes, the RFC is somewhat inaccurate in that respect. It is per-file =
in one sense (like encoding, but unlike ticks, it has no effect on the =
including or included files). However, it technically affects the =
remainder of the file, not the whole file.
>=20
> Well, no, not the remainder of the file either since it can be =
switched
> again. It only affects the part of the file between declares if there =
is
> a second one.

Sure, that=E2=80=99s true, the option can be changed more than once.

--
Andrea Faulds
http://ajf.me/