5.5.15

DateTime::setISODate

date_isodate_set

(PHP 5 >= 5.2.0)

DateTime::setISODate -- date_isodate_setSets 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(20082);
echo 
$date->format('Y-m-d') . "\n";

$date->setISODate(200827);
echo 
$date->format('Y-m-d') . "\n";
?>

Procedural style

<?php
$date 
date_create();

date_isodate_set($date20082);
echo 
date_format($date'Y-m-d') . "\n";

date_isodate_set($date200827);
echo 
date_format($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(200827);
echo 
$date->format('Y-m-d') . "\n";

$date->setISODate(200828);
echo 
$date->format('Y-m-d') . "\n";

$date->setISODate(2008537);
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(200814);
echo 
$date->format('n');
?>

The above examples will output:

3

See Also

add a note add a note

User Contributed Notes

There are no user contributed notes for this page.
To Top