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<?php $closure = function () use (&$person) { $person['name'] = 'Timmy'; $person['surname'] = 'Back'; return $person; }; $person = ['test']; var_dump($closure());
Output for 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
array(3) { [0]=> string(4) "test" ["name"]=> string(5) "Timmy" ["surname"]=> string(4) "Back" }

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