Change `__debugInfo` return type

From: Date: Wed, 17 Jun 2020 01:53:07 +0000
Subject: Change `__debugInfo` return type
Groups: php.internals 
Request: Send a blank email to internals+get-110614@lists.php.net to get a copy of this message
Hello, internals. I'd like to discuss with you a minor change that I'd like to make to PHP 8.0: change the return type of __debugInfo from ?array to array. The full context on how Máté found out that __debugInfo actually returns an ?array (which btw is not even documented: https://php.net/language.oop5.magic#object.debuginfo) can be found in this PR: https://github.com/php/php-src/pull/5496. Do you agree with this change, or should I proceed with a small RFC? -- Gabriel Caruso

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