(PHP 5 >= 5.6.5, PHP 7)
DatePeriod::getDateInterval — Gets the interval
Object oriented style
public DatePeriod::getDateInterval ( ) : DateInterval
Gets a DateInterval object representing the interval used for the period.
This function has no parameters.
Returns a DateInterval object
Example #1 DatePeriod::getDateInterval() example
<?php
$period = new DatePeriod('R7/2016-05-16T00:00:00Z/P1D');
$interval = $period->getDateInterval();
echo $interval->format('%d day');
?> The above example will output:
1 day
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https://www.php.net/manual/en/dateperiod.getdateinterval.php