DateTimeImmutable::modify

(PHP 5 >= 5.5.0, PHP 7)

DateTimeImmutable::modifyCreates a new object with modified timestamp

说明

public DateTimeImmutable DateTimeImmutable::modify ( string $modify )

Creates a new DateTimeImmutable object with modified timestamp. The original object is not modified.

参数

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。

modify

日期/时间字符串。正确格式的说明详见 日期与时间格式

返回值

Returns the newly created object 或者在失败时返回 FALSE.

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User Contributed Notes 1 note

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dmytro dot sokil at gmail dot com
8 months ago
To modify milliseconds and microseconds use next formats:

<?php
$a
= new \DateTimeImmutable('2018-01-01 00:00:00.000');
$b = $a->modify('9 msec');
var_dump($b->format('Y-m-d H:i:s.u'));
?>

Returns string(26) "2018-01-01 00:00:00.009000"

<?php
$a
= new \DateTimeImmutable('2018-01-01 00:00:00.000');
$b = $a->modify('9 usec');
var_dump($b->format('Y-m-d H:i:s.u'));
?>

Returns "2018-01-01 00:00:00.000009"
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