DateTime::getTimestamp
DateTimeImmutable::getTimestamp
DateTimeInterface::getTimestamp
date_timestamp_get
(PHP 5 >= 5.3.0, PHP 7, PHP 8)
DateTime::getTimestamp -- DateTimeImmutable::getTimestamp -- DateTimeInterface::getTimestamp -- date_timestamp_get — Gets the Unix timestamp
說明
物件導向風格
public DateTime::getTimestamp(): int
public DateTimeImmutable::getTimestamp(): int
public DateTimeInterface::getTimestamp(): int
過程化風格
Gets the Unix timestamp.
參數
此函式沒有參數。
返回值
Returns the Unix timestamp representing the date.
錯誤／異常
If the timestamp cannot be represented as int, a ValueError
is thrown. Prior to PHP 8.0.0, false was returned in this case.
Still, the timestamp can be retrieved as string by using
DateTimeInterface::format() with the U format.
更新日誌
| 版本 | 說明 |
|---|---|
| 8.0.0 |
These functions no longer return false on failure.
|
範例
示例 #1 DateTime::getTimestamp() example
物件導向風格
<?php
$date = new DateTime();
echo $date->getTimestamp();
?>
過程化風格
<?php
$date = date_create();
echo date_timestamp_get($date);
?>
以上例程的輸出類似於：
1272509157
參見
- DateTime::setTimestamp() - 以 Unix 時間戳的方式設定 DateTime 對像
- DateTime::format() - Returns date formatted according to given format