DateTimeImmutable::sub

(PHP 5 >= 5.5.0, PHP 7, PHP 8)

DateTimeImmutable::sub — Subtracts an amount of days, months, years, hours, minutes and seconds

Опис

#[\NoDiscard]
public DateTimeImmutable::sub(DateInterval $interval): DateTimeImmutable

Returns a new DateTimeImmutable object, with the specified DateInterval object subtracted from the specified DateTimeImmutable object.

Параметри

interval: A DateInterval object

Значення, що повертаються

Повертає новий об'єкт DateTimeImmutable зі зміненими даними.

Помилки/виключення

If an unsupported operation is attempted, such as using a DateInterval object representing relative time specifications such as next weekday, a DateInvalidOperationException is thrown.

Журнал змін

Версія	Опис
8.3.0	Now throws a DateInvalidOperationException instead of a warning when an unsupported operation is attempted.

Приклади

Приклад #1 DateTimeImmutable::sub() example

Об'єктно-орієнтований стиль

<?php
$date = new DateTimeImmutable('2000-01-20');
$newDate = $date->sub(new DateInterval('P10D'));
echo $newDate->format('Y-m-d') . "\n";
?>

Поданий вище приклад виведе:

2000-01-10

Приклад #2 Further DateTimeImmutable::sub() examples

<?php
$date = new DateTimeImmutable('2000-01-20');
$newDate = $date->sub(new DateInterval('PT10H30S'));
echo $newDate->format('Y-m-d H:i:s') . "\n";

$date = new DateTimeImmutable('2000-01-20');
$newDate = $date->sub(new DateInterval('P7Y5M4DT4H3M2S'));
echo $newDate->format('Y-m-d H:i:s') . "\n";
?>

Поданий вище приклад виведе:

2000-01-19 13:59:30
1992-08-15 19:56:58

Приклад #3 Beware when subtracting months

<?php
$date = new DateTimeImmutable('2001-04-30');
$interval = new DateInterval('P1M');

$newDate1 = $date->sub($interval);
echo $newDate1->format('Y-m-d') . "\n";

$newDate2 = $newDate1->sub($interval);
echo $newDate2->format('Y-m-d') . "\n";
?>

Поданий вище приклад виведе:

2001-03-30
2001-03-02

Прогляньте також

DateTimeImmutable::add() - Returns a new object, with added amount of days, months, years, hours, minutes and seconds
DateTimeImmutable::diff() - Returns the difference between two DateTime objects
DateTimeImmutable::modify() - Creates a new object with modified timestamp

Found A Problem?

Learn How To Improve This Page • Submit a Pull Request • Report a Bug

＋add a note

User Contributed Notes

There are no user contributed notes for this page.