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<?php /** * @return array<string, mixed> */ function objectToArray(object $object): array { return (fn (): array => get_object_vars($this))->call($object); } final class A { private $a = 'incapsulated string'; } var_dump(objectToArray(new A()));
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
array(1) { ["a"]=> string(19) "incapsulated string" }
Output for 7.2.0 - 7.2.34, 7.3.0 - 7.3.33
Parse error: syntax error, unexpected ':' in /in/adhBn on line 8
Process exited with code 255.

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