(PHP 5 >= 5.2.0, PHP 7)
DateTime::setDate -- date_date_set — Sets the date
Object oriented style
public DateTime::setDate ( int $year , int $month , int $day ) : DateTime
Procedural style
date_date_set ( DateTime $object , int $year , int $month , int $day ) : DateTime
Resets the current date of the DateTime object to a different date.
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.
Returns the DateTime object for method chaining or false on failure.
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
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https://www.php.net/manual/en/datetime.setdate.php