DateInterval 类2024-03-28T10:08:40+00:00tag:php.net,2009-10-13:/manual/en/file/class.dateintervalPhDPHP Documentation GroupDateInterval::__construct -- Creates a new DateInterval object2024-03-28T10:08:40+00:00tag:php.net,2009-10-13:/manual/en/dateinterval.constructDateInterval::createFromDateString -- Sets up a DateInterval from the relative parts of the string2024-03-28T10:08:40+00:00tag:php.net,2009-10-13:/manual/en/dateinterval.createfromdatestringDateInterval::format -- Formats the interval2024-03-28T10:08:40+00:00tag:php.net,2009-10-13:/manual/en/dateinterval.format