Online PHP editor | refs for VvrQN

<?php class Age { public function __construct(readonly public int $age) { if (0 > $age) { throw new DomainException('Age must be positive integer. "' . $age . '" provided.'); } } public function min(Age $comparingAge): Age { return min($this, $comparingAge); } } $firstAge = new Age(33); $secondAge = new Age(22); $minAge = $firstAge->min($secondAge); var_dump($minAge);