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<?php
namespace HansOtt\Holiday\Calendar;
use DateTimeImmutable;
use InvalidArgumentException;
final class Year
{
private $year;
/**
* @param int $year
*/
public function __construct($year)
$this->assertValidYear($year);
$this->year = (int) $year;
}
public static function current()
$now = new DateTimeImmutable();
$currentYear = (int) $now->format('Y');
return new static($currentYear);
public function toInt()
return $this->year;
public function __toString()
return (string) $this->year;
private function assertValidYear($year)
if (is_int($year) === false) {
throw new InvalidArgumentException(
sprintf(
'Expected an integer as $year but instead got "%s"',
is_object($year) ? get_class($year) : gettype($year)
)
);
hansott /
holidays
