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Date: Sat, 07 Feb 2015 22:52:30 -0500
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To: Andrea Faulds <ajf@ajf.me>
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Subject: Re: [PHP-DEV] [VOTE] Scalar Type Hints
From: rasmus@lerdorf.com (Rasmus Lerdorf)

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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 th=
e other hand, you discover if your ints floats would be silently truncate=
d (as I did with PictoSwap).
>=20
> I wouldn=E2=80=99t say that int->string not working is a problem, thoug=
h. 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=
=2E If I want a string, I=E2=80=99ll use one.

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.

> 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 inclu=
ding or included files). However, it technically affects the remainder of=
 the file, not the whole file.

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.

-Rasmus



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