On 14.09.2016 at 17:10, David (Dj) Eddy wrote:
> Issue: Currently the format for nullable function parameters is as
> follows: `fn(?int $param)`; this makes little visual sense from an
> outside perspective. What does the `?` mean? PHP does not have a `?`
> data type; it is very visually ambiguous.
>
> Suggestion: `fn(null|int $param)`. This uses the same syntax format
> that other logic constructs in the language use as well as being very
> explicit to the data types allowed for the parameter. For the moment
> only `null|{one other data type}` would be the goal of the RFC;
> however in future iterations multiple data types could be allowed.
>
> Gauge initial interest in a alteratio of this type, thanks for your time.
There has already been the union type RFC[1], which has recently been
declined.
[1] <https://wiki.php.net/rfc/union_types>
--
Christoph M. Becker
--
PHP Internals - PHP Runtime Development Mailing List
To unsubscribe, visit: http://www.php.net/unsub.php
