PHP - Manual: IntlGregorianCalendar::isLeapYear
2025-02-27
(PHP 5 >= 5.5.0, PHP 7, PHP 8)
IntlGregorianCalendar::isLeapYear — Determine if the given year is a leap year
year
官方地址:https://www.php.net/manual/en/intlgregoriancalendar.isleapyear.php