DateTime::setDate

date_date_set

(PHP 5 >= 5.2.0, PHP 7)

DateTime::setDate -- date_date_setAssigne la date

Description

Style orienté objet

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

Style procédural

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

Assigne la date courante de l'objet DateTime à une nouvelle date.

Liste de paramètres

object

Style procédural uniquement : Un objet DateTime retourné par la fonction date_create(). Cette fonction modifie cet objet.

year

Année de la date.

month

Mois de la date.

day

Jour de la date.

Valeurs de retour

Retourne l'objet DateTime pour chainer les méthodes ou FALSE si une erreur survient.

Historique

Version Description
5.3.0Changement de valeur de retour de NULL à DateTime en cas de succès.

Exemples

Exemple #1 Exemple avec DateTime::setDate()

Style orienté objet

<?php
$date 
= new DateTime();
$date->setDate(200123);
echo 
$date->format('Y-m-d');
?>

Style procédural

<?php
$date 
date_create();
date_date_set($date200123);
echo 
date_format($date'Y-m-d');
?>

Les exemples ci-dessus vont afficher :

2001-02-03

Exemple #2 Les valeurs qui dépassent leurs bornes sont ajoutées à leur parent

<?php
$date 
= new DateTime();

$date->setDate(2001228);
echo 
$date->format('Y-m-d') . "\n";

$date->setDate(2001229);
echo 
$date->format('Y-m-d') . "\n";

$date->setDate(2001143);
echo 
$date->format('Y-m-d') . "\n";
?>

L'exemple ci-dessus va afficher :

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

Voir aussi

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User Contributed Notes 5 notes

up
4
indjeto at mail dot bg
1 month ago
I found a bug:
$date = new \DateTime('first day of this month');
$date->setDate(2001, 2, 3);
echo $date->format('Y-m-d');

This outputs: 2001-02-01
The day never changes.
up
6
remy215 at laposte dot net
5 years ago
Be warned, DateTime::setDate() does not check for invalid input.

Illustration:
<?php
$dt
= new DateTime();
$dt->setDate(2012, 11, 31); // returns DateTime object and not false although this date does not exist
echo $dt->format('Y-m-d'); // output: 2012-12-01
?>

No error was generated on entering a non existing date, php silently changed it.
up
0
rick at sublymesystems dot com
16 days ago
Indjeto: You creating the datetime object with the first day of the month you are currently in when you initialize the object. Then you reset the date to the date you entered. Then you output, which is the day you entered because thats what you set it to. If you want to see the result you are assumed to be expecting you should not run the setDate() method.
up
0
kevin dot nadin at gmail dot com
18 days ago
Correction on the previous comment :

Bug fixed in php 7.0.17 and 7.1.3, for the version 7.0.0 to 7.0.16 and 7.1.0 to 7.1.2, the bug is still present
up
0
kevin dot nadin at gmail dot com
18 days ago
Be carreful about this bug in php 5.6 and lower (fixed in php 7.0 and higher) :

<?php
$date
= new DateTime("first day of last month");
echo
$date->format('Y-m-d');
echo 
' => ' ;
$date->setDate(2013, 2, 3);
echo
$date->format('Y-m-d');
?>

Output <=5.6 : 2017-03-01 => 2013-02-01
Output >=7.0 : 2017-03-31 => 2013-02-03

Same goes for "Last day of last month", and the funny part, it will take the last day of the new month setted by setDate

Example with a Leap Year :
<?php
$date
= new DateTime("last day of last month");
echo
$date->format('Y-m-d');
echo 
' => ' ;
$date->setDate(2012, 2, 3);
echo
$date->format('Y-m-d');
?>

Output <=5.6 : 2017-03-31 => 2012-02-29
Output >=7.0 : 2017-03-31 => 2012-02-03
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