(PHP 5 >= 5.5.0, PHP 7)
date_create_immutable — 锟斤拷锟斤拷 DateTimeImmutable::__construct()
锟剿猴拷锟斤拷锟角该猴拷锟斤拷锟侥憋拷锟斤拷锟斤拷 DateTimeImmutable::__construct()