GoLang DateTime::setISODate

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PHP DateTime::setISODate

PHP original manual for DateTime::setISODate [ show | php.net ]

DateTime::setISODate

date_isodate_set

(PHP 5 >= 5.2.0, PHP 7)

DateTime::setISODate -- date_isodate_set — Sets the ISO date

Description

Object oriented style

public DateTime DateTime::setISODate ( int $year , int $week [, int $day = 1 ] )

Procedural style

DateTime date_isodate_set ( DateTime $object , int $year , int $week [, int $day = 1 ] )

Set a date according to the ISO 8601 standard - using weeks and day offsets rather than specific dates.

Parameters

object

Procedural style only: A DateTime object returned by date_create(). The function modifies this object.

year

Year of the date.

week

Week of the date.

day

Offset from the first day of the week.

Return Values

Returns the DateTime object for method chaining or FALSE on failure.

Changelog

Version Description
5.3.0Changed the return value on success from NULL to DateTime.

Examples

Example #1 DateTime::setISODate() example

Object oriented style

<?php
$date = new DateTime();

$date->setISODate(2008, 2);
echo $date->format('Y-m-d') . "\n";

$date->setISODate(2008, 2, 7);
echo $date->format('Y-m-d') . "\n";
?>

Procedural style

<?php
$date = date_create();

date_isodate_set($date, 2008, 2);
echo date_format($date, 'Y-m-d') . "\n";

date_isodate_set($date, 2008, 2, 7);
echo date_format($date, 'Y-m-d') . "\n";
?>

The above examples will output:

2008-01-07
2008-01-13

Example #2 Values exceeding ranges are added to their parent values

<?php
$date = new DateTime();

$date->setISODate(2008, 2, 7);
echo $date->format('Y-m-d') . "\n";

$date->setISODate(2008, 2, 8);
echo $date->format('Y-m-d') . "\n";

$date->setISODate(2008, 53, 7);
echo $date->format('Y-m-d') . "\n";
?>

The above example will output:

2008-01-13
2008-01-14
2009-01-04

Example #3 Finding the month a week is in

<?php
$date = new DateTime();
$date->setISODate(2008, 14);
echo $date->format('n');
?>

The above examples will output:

3

See Also