The IntlCalendar::fieldDifference() function is an inbuilt function in PHP which is used to return the difference between given time and the object time.
Syntax:
- Object oriented style:
int IntlCalendar::fieldDifference( float $when, int $field )
- Procedural style:
int intlcal_field_difference( IntlCalendar $cal, float $when, int $field )
Parameters:
- $cal: This parameter holds the IntlCalendar resource name.
- $when: This parameter holds the time against which to compare the quantity represented by the field.
- $field: This parameter holds the field that represents the quantity being compared.
Return Value: This function returns a signed difference of time in the unit associated with the specified field on success or FALSE on failure.
Below program illustrates the IntlCalendar::fieldDifference() function in PHP:
Program:
<?php // Set the timezone ini_set('date.timezone', 'Asia/Calcutta'); // Get the time from calendar $calendar1 = IntlCalendar::fromDateTime('2018-12-21 09:30:25'); $calendar2 = IntlCalendar::fromDateTime('2019-08-29 11:20:20'); // Get time represented by the object $calTime = $calendar2->getTime(); // Display the first time echo "First Time: " . IntlDateFormatter::formatObject($calendar1) . "\n"; // Display the last time echo "Last Time: " . IntlDateFormatter::formatObject($calendar2) . "\n"; // Time difference echo "Time difference: " . $calendar1->fieldDifference($calTime, IntlCalendar::FIELD_YEAR) . "-Years " . $calendar1->fieldDifference($calTime, IntlCalendar::FIELD_MONTH) . "-Months " . $calendar1->fieldDifference($calTime, IntlCalendar::FIELD_DAY_OF_MONTH) . "-Days " . $calendar1->fieldDifference($calTime, IntlCalendar::FIELD_HOUR_OF_DAY) . "-Hours " . $calendar1->fieldDifference($calTime, IntlCalendar::FIELD_MINUTE) . "-Minutes"; ?> |
Output:
First Time: Dec 21, 2018, 9:30:25 AM Last Time: Aug 29, 2019, 11:20:20 AM Time difference: 0-Years 8-Months 8-Days 1-Hours 49-Minutes
Reference: https://www.php.net/manual/en/intlcalendar.fielddifference.php
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