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IntlCalendar::fieldDifference
(PHP 5 >= 5.5.0, PHP 7, PECL >= 3.0.0a1)
IntlCalendar::fieldDifference — Calculate difference between given time and this objectʼs time
Description
Object oriented style
$when
, int $field
) : intProcedural style
Return the difference between the given time and the time this object is
set to, with respect to the quantity specified the
field parameter.
This method is meant to be called successively, first with the most significant field of interest down to the least significant field. To this end, as a side effect, this calendarʼs value for the field specified is advanced by the amount returned.
Parameters
-
cal -
The IntlCalendar resource.
-
when -
The time against which to compare the quantity represented by the
field. For the result to be positive, the time given for this parameter must be ahead of the time of the object the method is being invoked on. -
field -
The field that represents the quantity being compared.
One of the IntlCalendar date/time field constants. These are integer values between 0 and
IntlCalendar::FIELD_COUNT.
Return Values
Returns a (signed) difference of time in the unit associated with the
specified field or FALSE on failure.
Examples
Example #1 IntlCalendar::fieldDifference()
<?php
ini_set('date.timezone', 'Europe/Lisbon');
ini_set('intl.default_locale', 'fr_FR');
$cal1 = IntlCalendar::fromDateTime('2012-02-29 09:00:11');
$cal2 = IntlCalendar::fromDateTime('2013-03-01 09:19:29');
$time = $cal2->getTime();
echo "Time before: ", IntlDateFormatter::formatObject($cal1), "\n";
printf(
"The difference in time is %d year(s), %d month(s), "
. "%d day(s), %d hour(s) and %d minute(s)\n",
$cal1->fieldDifference($time, IntlCalendar::FIELD_YEAR),
$cal1->fieldDifference($time, IntlCalendar::FIELD_MONTH),
$cal1->fieldDifference($time, IntlCalendar::FIELD_DAY_OF_MONTH),
$cal1->fieldDifference($time, IntlCalendar::FIELD_HOUR_OF_DAY),
$cal1->fieldDifference($time, IntlCalendar::FIELD_MINUTE)
);
//now it was advanced to the target time, exception for the seconds,
//for which we did not measure the difference
echo "Time after: ", IntlDateFormatter::formatObject($cal1), "\n";
The above example will output:
Time before: 29 févr. 2012 09:00:11 The difference in time is 1 year(s), 0 month(s), 1 day(s), 0 hour(s) and 19 minute(s) Time after: 1 mars 2013 09:19:11
English translation
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Document created the 30/01/2003, last modified the 26/10/2018
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References
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