On 14/03/2020 15:57, Mike Schinkel wrote:
What you are looking for are Named Parameters, there have been multiple
RFCs about which have all been more or less abandoned from what I see.
https://wiki.php.net/rfc/namedparameters (From 2012)
https://wiki.php.net/rfc/named_params (From 2013)
https://wiki.php.net/rfc/simplified_named_params (From 2016)
Can anyone summarize why these did not move forward?
Without digging back into the archives, my memory is that points of
discussion included:
- The choice of syntax.
- Support for internal functions, which don't declare parameters in the
same way. I believe this is now solved, or at least vastly improved, by
providing reflection information for internal functions via PHP-syntax
stubs (see https://externals.io/message/105851 and
https://externals.io/message/105970).
- Handling of inheritance: what happens if a class overrides a base
method (or implements an interface method) but uses different parameter
names? If all parameters are immediately accessible by name (i.e. no
extra opt-in is needed in the definition), there will be a large amount
of existing code which would immediately break LSP this way.
- Mixing named and positional parameters in a single function call.
- Handling of variadics, both the function foo(...$args) syntax and the
special func_get_args() etc functions
- Behaviour when a non-optional parameter is skipped (all three RFCs
predate https://wiki.php.net/rfc/too_few_args)
Regards,
--
Rowan Tommins (né Collins)
[IMSoP]
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