> Le 16 oct. 2019 à 19:11, Bob Weinand <bobw...@hotmail.com> a écrit :
>
>
>>
>> Am 16.10.2019 um 03:46 schrieb David Rodrigues <david.pro...@gmail.com>:
>>
>> Hello. I like to suggests a discussion about a FR to make possible to
>> inline switch, as an alternative to nested inline conditionals.
>>
>> $value = switch (expr()) {
>> case A1: return A2;
>> case B1: return B2;
>> default: return C;
>> }
>>
>> Instead of:
>>
>> $expr = expr();
>> $value = $expr == A1 ? A2 : ( $expr == B1 ? B2 : C );
>>
>> Just a discussion to check what do you think.
>>
>> --
>> David Rodrigues
>
> Hey David,
>
> what's the concrete advantage of this syntax as opposed to the already
> possible:
>
> $value = [
> A1 => A2,
> B1 => B2,
> ][expr()] ?? C;
>
> there are only differences in edge cases (with floats or with type mixing) …
> but for the vast majority of use cases, it is just as powerful as what you
> proposed.
>
> Bob
One concrete advantage is, when A2 or B2 are complex expressions that are
costly to evaluate or that throw error when given inappropriate input, they are
not evaluated needlessly.
—Claude
--
PHP Internals - PHP Runtime Development Mailing List
To unsubscribe, visit: http://www.php.net/unsub.php
