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Date: Wed, 22 Jan 2025 15:35:50 +0100
To: php internals <internals@lists.php.net>, Volker Dusch
 <volker@tideways-gmbh.com>
Subject: [PHP-DEV] RFC: First Class Callables in constant expressions
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From: tim@bastelstu.be (=?UTF-8?Q?Tim_D=C3=BCsterhus?=)

Hi

Volker and I would like to start discussion on our RFC to support "First 
Class Callables in constant expressions".

Please find the following resources for your reference:

- RFC: https://wiki.php.net/rfc/fcc_in_const_expr
- Implementation: https://github.com/php/php-src/pull/17213

- The related "Support Closures in constant expressions" RFC: 
https://wiki.php.net/rfc/closures_in_const_expr
- The "Support Closures in constant expressions" discussion: 
https://externals.io/message/125872

Best regards
Tim Düsterhus