PHP 8.3.0 RC 6 available for testing

DatePeriod::getStartDate

(PHP 5 >= 5.6.5, PHP 7, PHP 8)

DatePeriod::getStartDate Gets the start date

说明

面向对象风格

public DatePeriod::getStartDate(): DateTimeInterface

Gets the start date of the period.

参数

此函数没有参数。

返回值

Returns a DateTimeImmutable object when the DatePeriod is initialized with a DateTimeImmutable object as the start parameter.

Returns a DateTime object otherwise.

示例

示例 #1 DatePeriod::getStartDate() example

<?php
$period
= new DatePeriod('R7/2016-05-16T00:00:00Z/P1D');
$start = $period->getStartDate();
echo
$start->format(DateTime::ISO8601);
?>

以上示例会输出:

 
2016-05-16T00:00:00+0000

参见

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