(PHP 5 >= 5.5.0, PHP 7, PHP 8)
DateTimeImmutable::__construct -- date_create_immutable — Returns new DateTimeImmutable object
面向对象风格
$datetime
= "now"
, DateTimeZone|null $timezone
= null
)过程化风格
$datetime
= "now"
, DateTimeZone|null $timezone
= null
) : DateTimeImmutable|falseLike DateTime::__construct() but works with DateTimeImmutable.