PHP 8.5: register_argc_argv is Off in CLI

[ondrejmirtes]

Description

In this deprecations RFC https://wiki.php.net/rfc/deprecations_php_8_5 under "Deprecate the register_argc_argv INI directive" is the following:

We propose to deprecate this INI setting and make in default to Off in PHP 8.5, then to hardcode it to Off for all non-CLI-related SAPIs on PHP 9 (while keeping it hardcoded to On for CLI-related ones).

When I try php -r "echo ini_get('register_argc_argv');" on PHP 8.5.0-dev (cli) (built: Oct 18 2025 21:59:48) (NTS) it outputs 0. But I'm on the command line and I'd expect this to be set to 1.

PHP Version

PHP 8.5.0-dev (cli) (built: Oct 18 2025 21:59:48) (NTS)
Copyright (c) The PHP Group
Built by Shivam Mathur
Zend Engine v4.5.0-dev, Copyright (c) Zend Technologies
    with Zend OPcache v8.5.0-dev, Copyright (c), by Zend Technologies

Operating System

macOS 15.7 (and also on ubuntu-latest in GitHub Actions with setup-php)

[TimWolla]

Please see discussion in #20280. To understand this motivation of this issue: Did you raise it, because the implementation is giving you troubles in some way or did you raise it just to double-check that we didn't accidentally make a mistake?

[ondrejmirtes]

I raised it because the behaviour doesn't match the content of the RFC people voted hore, and presumably what should also happen in PHP 9. register_argc_argv should still be 1 in CLI be default.

I noticed the change only because I upgraded to PHP 8.5 in issue-bot (a bot that notices changes in reported errors in code snippets shared by users) and some additional issues appeared related to this: phpstan/phpstan#12625 (comment) (the change itself doesn't matter to me and doesn't break anything so I'd be fine with it).