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<?php class Age { public function __construct(readonly public int $age) { if (0 > $age) { throw new DomainException('Age must be positive integer. "' . $age . '" provided.'); } } } class PickMinAge { public function __invoke(Age $firstAge, Age $secondAge): Age { return min($firstAge, $secondAge); } } $firstAge = new Age(33); $secondAge = new Age(22); $minAge = (new PickMinAge())($firstAge, $secondAge); var_dump($minAge);
Output for git.master, git.master_jit, rfc.property-hooks
object(Age)#2 (1) { ["age"]=> int(22) }

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