DateTime
PHP Manual

DateTime::setDate

date_date_set

Sets the date

Description

Object oriented style

public DateTime DateTime::setDate ( int $year , int $month , int $day )

Procedural style

DateTime date_date_set ( DateTime $object , int $year , int $month , int $day )

Resets the current date of the DateTime object to a different date.

Parameters

object

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

year

Year of the date.

month

Month of the date.

day

Day of the date.

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::setDate example

Object oriented style

<?php
$date = new DateTime();
$date->setDate(2001, 2, 3);
echo $date->format('Y-m-d');
?>

Procedural style

<?php
$date = date_create();
date_date_set($date, 2001, 2, 3);
echo date_format($date, 'Y-m-d');
?>

The above examples will output:

2001-02-03

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

<?php
$date = new DateTime();

$date->setDate(2001, 2, 28);
echo $date->format('Y-m-d') . "\n";

$date->setDate(2001, 2, 29);
echo $date->format('Y-m-d') . "\n";

$date->setDate(2001, 14, 3);
echo $date->format('Y-m-d') . "\n";
?>

The above example will output:

2001-02-28
2001-03-01
2002-02-03

See Also

  • DateTime::setISODate
  • DateTime::setTime