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Date: Mon, 19 May 2025 18:33:01 +0300
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To: PHP internals <internals@lists.php.net>
Subject: [PHP-DEV] Forced named parameters
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From: sandfox@sandfox.me (Anton Smirnov)

Hi everyone,

Looking [RFC] Clone with v2, especially Larry's message
(https://externals.io/message/127353#127399) I'm thinking that it might 
be a good idea to allow forcing function calls to use named arguments.

Python has it by defining arguments after the variadic argument:
https://peps.python.org/pep-3102/

   def compare(a, b, *v, key=None):
     ...

Since PHP named args work similarly, borrowing syntax makes sense. It 
would look like

   function f(Type $pos1, Type $pos2, ...$v, Type $named1, Type $named2)

or without the variadic

   function f(Type $pos1, Type $pos2, ..., Type $named1, Type $named2)

The scope is highly configurable functions and options objects:

     function json_encode(
         mixed $value,
         ...,
         int $depth = 512,
	// arguments instead of constants
	// easier for the code completion
	// and call strictness
         bool $hexTag = false,
	// arguments can be grouped by meaning
         // and new ones can be inserted into the middle
	// without breaking compatibility
	bool $hexAmp = false,
         // options can have values
         string $indent = '    ',
         // ...
     ): string {
         // ...
     }


P.S. I'm just planting an idea for now, unlikely that I'm able to develop it