DateTimeImmutable::setTimestamp

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

DateTimeImmutable::setTimestampSets the date and time based on a Unix timestamp

说明

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

Returns a new DateTimeImmutable object constructed from the old one, with the date and time set based on an Unix timestamp.

参数

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

返回带有修改数据的新 DateTimeImmutable 对象。

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

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User Contributed Notes 2 notes

up
7
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.
up
1
Philip
1 year 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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