PHP | DateTime setDate() Function

The DateTime::setDate() function is an inbuilt function in PHP which is used to reset the current date of DateTime object with the given date-time object.

Syntax:

• Object oriented style:

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

• Procedural style:

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

Parameters: This function accepts three parameters as mentioned above and described below:

• $year: This parameter holds the value of year of the date.
• $month: This parameter holds the value of month of the date.
• $day: This parameter holds the value of day of the date.

Return Value: This function returns a new DateTime object on success or False on failure.

Below programs illustrate the DateTime::setDate() function in PHP:

Program 1 :

<?php
// PHP program to illustrate
// DateTime::setDate() function

// Creating a new DateTime() object
$datetime = new DateTime();

// Initialising year, month and day
$Year = '2019';
$Month = '09';
$Day = '30';

// Calling the setDate() function
$datetime->setDate($Year, $Month, $Day);

// Getting a new set of date in the
// format of 'Y-m-d'
echo $datetime->format('Y-m-d');
?>

Output:

2019-09-30

Program 2:

<?php
// PHP program to illustrate
// DateTime::setDate() function

// Creating a new DateTime() object
$datetime = new DateTime();

// Calling the setDate() function
// with parameters like years of 2019,
// month of 10 and day of 1
$datetime->setDate(2019, 10, 01);

// Getting a new set of date in the
// format of 'Y-m-d'
echo $datetime->format('Y-m-d');
?>

Output:

2019-10-01

Reference: https://www.php.net/manual/en/datetime.setdate.php