Internals,
While cleaning up some PRs I was prompted to re-visit one I had
outstanding about exception-throwing behaviour when redefining
constants, this applies to functions like define and language syntax
constructs such as const.
There have been a few discussions in the past about the topic.
Here is one from 2016 from Dmitry:
https://wiki.php.net/rfc/constant_redefinition
Discussion:
https://externals.io/message/93885
My own PR:
https://github.com/php/php-src/pull/5265
Since Dmitry's RFC was made in 2016, and my PR a while ago, attempted
redeclaration was promoted from a notice to a warning, but I still think
it's sensible to go one step further.
There was mention on github that there was some resistence to promotion
to exception in the past, but I think there is a strong possibility that
the mood may be different many years later, with PHPs positive moves
towards throwing on poorly defined or illogical behaviour.
To gauge this, I'm throwing out a non-binding strawpoll to get the lay
of the land before doing anything else with it. If there is general
favour I'll fix up my patch and do a proper RFC.
https://wiki.php.net/redefine_constants_exception_strawpoll
Mark Randall
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