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Date: Wed, 5 Oct 2022 10:04:15 +0200
In-Reply-To: <CAM0CcxgCT=M++9fTosG8FzuCKn=v8VQykRQY1E8_BzT=k_rk4w@mail.gmail.com>
Cc: PHP Internals <internals@lists.php.net>
To: Eugene Sidelnyk <zsidelnik@gmail.com>
References: <CAM0CcxgCT=M++9fTosG8FzuCKn=v8VQykRQY1E8_BzT=k_rk4w@mail.gmail.com>
Subject: Re: [PHP-DEV] Union type casts
From: claude.pache@gmail.com (Claude Pache)

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> Le 5 oct. 2022 =C3=A0 06:46, Eugene Sidelnyk <zsidelnik@gmail.com> a =
=C3=A9crit :
>=20
> I assume the behavior should be the same as if we called the function
> having respective parameter type-hint (with a remark that strict types =
are
> disabled):

Hi,

Function parameters are more restrictive than explicit cast in what it =
accepts. In particular, the following inputs are rejected with a =
TypeError when fed to a function that accepts an `int`: `"3 mices"`, =
`null`, `[ ]`. Most notably, no type conversion is performed when the =
input type is `null` or  `array`, or when the target type is `array` or =
`object`.

For reference, the original conversion rules are here: =
https://wiki.php.net/rfc/union_types_v2#coercive_typing_mode =
<https://wiki.php.net/rfc/union_types_v2#coercive_typing_mode> (I =
don=E2=80=99t know if there has been adjustments since then.)

=E2=80=94Claude



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