(PHP 4, PHP 5, PHP 7)
jdtounix — 转锟斤拷Julian Day锟斤拷锟斤拷为一锟斤拷Unix时锟斤拷锟�
$jday
) : int
锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷莞锟斤拷锟斤拷锟絡ulian锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷Unix时锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷jday锟斤拷锟斤拷Unix时锟戒（Gregorian锟斤拷锟斤拷锟斤拷1970锟斤拷锟斤拷2037锟疥，锟斤拷2440588 <= jday <= 2465342锟斤拷锟斤拷围锟节凤拷锟斤拷 FALSE 锟斤拷锟斤拷锟截碉拷时锟斤拷锟角憋拷锟斤拷时锟戒（锟斤拷锟斤拷GMT锟斤拷锟斤拷
jday一锟斤拷锟斤拷 2440588 锟斤拷 2465342 之锟斤拷锟絡ulian锟斤拷锟斤拷
指锟斤拷锟斤拷julian锟斤拷锟斤拷锟侥匡拷始时锟斤拷时锟斤拷锟斤拷锟�