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<?php
declare(strict_types = 1);
namespace Kata\Algorithm;
final class PeopleComparison
{
/** @var Person */
private $young_person;
private $old_person;
/** @var int */
private $birthday_difference;
public function youngPerson()
return $this->young_person;
}
public function oldPerson()
return $this->old_person;
public function birthdayDifference()
$this->birthday_difference = $this->old_person->birthDate()->getTimestamp()
- $this->youngPerson()->birthDate()->getTimestamp();
return $this->birthday_difference;
public function setYoungPerson(Person $a_person)
$this->young_person = $a_person;
public function setOldPerson(Person $a_person)
$this->old_person = $a_person;
uvinum /
php-kata-env
