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PHP date_isodate_set() Function

❮ PHP Date/Time Reference

Example

Set the ISO date to the 5th week in 2013:

<?php
$date=date_create();
date_isodate_set($date,2013,5);
echo date_format($date,"Y-m-d");
?>
Try it Yourself »

Definition and Usage

The date_isodate_set() function sets a date according to the ISO 8601 standard, using weeks and day offsets (instead of using a specific date).


Syntax

date_isodate_set(object, year, week, day)
Parameter Description
object Required. Specifies a DateTime object returned by date_create()
year Required. Specifies the year of the date
week Required. Specifies the week of the date
day Optional. Specifies the offset from the first day of the week. Default is 1

Technical Details

Return Value: Returns a DateTime object on success. FALSE on failure
PHP Version: 5.2+
PHP Changelog: PHP 5.3: Changed the return value from NULL to DateTime

❮ PHP Date/Time Reference