(PHP 5 >= 5.5.0, PHP 7, PHP 8)
DateTimeImmutable::createFromFormat -- date_create_immutable_from_format — Parses a time string according to a specified format
面向对象风格
$format, string $datetime, ?DateTimeZone $timezone = null): DateTimeImmutable|false过程化风格
$format, string $datetime, ?DateTimeZone $timezone = null): DateTimeImmutable|falseLike DateTime::createFromFormat() but works with DateTimeImmutable.