PHP - Manual: DateTimeImmutable::setDate
2024-12-22
(PHP 5 >= 5.5.0, PHP 7, PHP 8)
DateTimeImmutable::setDate — Sets the date
Returns a new DateTimeImmutable object with the current date of the DateTimeImmutable object set to the given date.
object
仅过程化风格:由 date_create() 返回的 DateTime 类型的对象。此函数会修改这个对象。
year
Year of the date.
month
Month of the date.
day
Day of the date.
Returns a new modified DateTimeImmutable object 或者在失败时返回 false
.
示例 #1 DateTimeImmutable::setDate() example
面向对象风格
<?php
$date = new DateTimeImmutable();
$newDate = $date->setDate(2001, 2, 3);
echo $newDate->format('Y-m-d');
?>
以上例程会输出:
2001-02-03
示例 #2 Values exceeding ranges are added to their parent values
<?php
$date = new DateTimeImmutable();
$newDate = $date->setDate(2001, 2, 28);
echo $newDate->format('Y-m-d') . "\n";
$newDate = $date->setDate(2001, 2, 29);
echo $newDate->format('Y-m-d') . "\n";
$newDate = $date->setDate(2001, 14, 3);
echo $newDate->format('Y-m-d') . "\n";
?>
以上例程会输出:
2001-02-28 2001-03-01 2002-02-03
官方地址:https://www.php.net/manual/en/datetimeimmutable.setdate.php