DateTimeImmutable::setTimestamp

(PHP 5 >= 5.5.0, PHP 7, PHP 8)

DateTimeImmutable::setTimestamp — Sets the date and time based on a Unix timestamp

说明

public DateTimeImmutable::setTimestamp(int $timestamp): DateTimeImmutable

Returns a new DateTimeImmutable object with the date and time set based on an Unix timestamp.

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。
timestamp: Unix timestamp representing the date. Setting timestamps outside the range of int is possible by using DateTimeImmutable::modify() with the @ format.

返回值

Returns a new modified DateTimeImmutable object 或者在失败时返回 false.

范例

示例 #1 DateTimeImmutable::setTimestamp() example

面向对象风格


<?php
$date = new DateTimeImmutable();
echo $date->format('U = Y-m-d H:i:s') . "\n";

$newDate = $date->setTimestamp(1171502725);
echo $newDate->format('U = Y-m-d H:i:s') . "\n";
?>

以上例程的输出类似于：

1272508903 = 2010-04-28 22:41:43
1171502725 = 2007-02-14 20:25:25

参见

DateTimeImmutable::getTimestamp() - Gets the Unix timestamp

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User Contributed Notes 2 notes

down

ben at hl9 dot net ¶

3 years ago


Note that this is not the right way to initiate a \DateTimeImmutable object with a numeric Unix timestamp.  

<?php
// Wrong, despite the documention *kind of* alluding to it 
$obj = \DateTimeImmutable::setTimestamp(time() - 1);

// Also won't work
$obj = new \DateTimeImmutable(time() - 1)

// Correct, works, clean single line
$obj = (new \DateTimeImmutable())->setTimestamp(time() - 1);
?>

... In fact, this is a non-static method and thus should not be called statically.

down

Philip ¶

11 months ago


This function will not change the value of the DateTimeImmutable object as the method name might suggest. The object, after all, immutable.

<?php
   $dti = new DateTimeImmutable();
   echo $dti->getTimestamp(); // e.g. 123456789
   $dti->setTimestamp(987654321);
   echo $dti->getTimestamp(); // 123456789

   $x = $dti->setTimestamp (987654321);
   echo $x->getTimestamp(); // 987654321
?>

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官方地址：https://www.php.net/manual/en/datetimeimmutable.settimestamp.php

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DateTimeImmutable::setTimestamp

说明

参数

返回值

范例

参见

User Contributed Notes 2 notes