DateTime::setDate

date_date_set

(PHP 5 >= 5.2.0, PHP 7, PHP 8)

DateTime::setDate -- date_date_setSets the date

Descrizione

Stile orientato agli oggetti

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

Stile procedurale

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

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

Like DateTimeImmutable::setDate() but works with DateTime, and changes the existing object.

The procedural version takes the DateTime object as its first argument.

Elenco dei parametri

oggetto

Solo per lo stile procedurale: Un oggetto DateTime restituito da date_create(). La funzione modifica questo oggetto.

year

Year of the date.

month

Month of the date.

day

Day of the date.

Valori restituiti

Returns the modified DateTime object for method chaining.

Vedere anche:

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User Contributed Notes 3 notes

up
7
kevin dot nadin at gmail dot com
7 years 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
up
3
remy215 at laposte dot net
12 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
-4
kevin dot nadin at gmail dot com
7 years 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
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