(PHP 5 >= 5.3.0, PHP 7)
Represents a date interval.
A date interval stores either a fixed amount of time (in years, months, days, hours etc) or a relative time string in the format that DateTime's constructor supports.
Number of years.
Number of months.
Number of days.
Number of hours.
Number of minutes.
Number of seconds.
Number of microseconds, as a fraction of a second.
Is 1 if the interval represents a negative time period and 0 otherwise. See DateInterval::format().
If the DateInterval object was created by
DateTime::diff(), then this is the total number of
days between the start and end dates. Otherwise,
days will be FALSE
.
Before PHP 5.4.20/5.5.4 instead of FALSE
you will receive -99999 upon
accessing the property.
版本 | 说明 |
---|---|
7.1.0 | The f property was added. |