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To: Ben Ramsey <ben@benramsey.com>, Josh Bruce <josh@joshbruce.dev>
CC: Mike Schinkel <mike@newclarity.net>, "internals@lists.php.net"
	<internals@lists.php.net>
Thread-Topic: [PHP-DEV] [RFC] Add is_list(mixed $value): bool to check for
 list-like arrays
Thread-Index: AQHW2VTxmR7noC7fJ06F2xteIZop/w==
Date: Wed, 23 Dec 2020 18:05:45 +0000
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Subject: Re: [PHP-DEV] [RFC] Add is_list(mixed $value): bool to check for
 list-like arrays
From: tysonandre775@hotmail.com (tyson andre)

Hi Ben/Josh,=0A=
=0A=
> I actually like the idea of flags added to `is_array()` for this.=0A=
>=0A=
> Something like:=0A=
> =0A=
> =A0=A0=A0 is_array($value, ZERO_INDEXED | ASSOCIATIVE | INTEGER_INDEXED)=
=0A=
>=0A=
> I=92m not suggesting these names; they=92re for illustration only.=0A=
=0A=
I'm strongly opposed to adding any flags to is_array - keeping basic type c=
hecks simple would help in learning/reading/remembering the language,=0A=
has a small impact on performance for calls that aren't unambiguously quali=
fied (especially if using both), and it makes it harder to see issues like=
=0A=
`is_array(really_long_multiline_call(arg1, arg2, ZERO_INDEXED))`=0A=
=0A=
An idea for a PECL would be `pecl_check_type($value, PREFIX_MAY_BE_ARRAY|PR=
EFIX_MAY_BE_ARRAY_KEY_LONG|PREFIX_MAY_BE_ARRAY_OF_STRING|PREFIX_MAY_BE_ARRA=
Y_OF_OBJECT)`=0A=
to check for an array with integer keys and strings and objects as values, =
but I really can't imagine it getting adopted or being the main performance=
 bottleneck in a typical php application, especially with the jit and with =
most arrays being small. (I don't have any interest in actually doing that)=
=0A=
=0A=
Cheers,=0A=
Tyson=0A=
=0A=
=0A=