Question

我想用PHP获得4个不同的日期：1天，1周，1个月和3个月。每个日期都是从当天开始，所以我们今天说的是2014-11-26。

根据当前日期获取过去的日期。

$today = date("Y-m-d");
$one_day = $today - //how do I get yesterday from current day?
$one_week = $today -  //how do I get one week from current day?
$one month = $today - //how do I get one month from current day?
$three_month = $today -  //how do I get three month from current day?

Answer 1

strtotime() - 函数非常适合这种方法。使用像

这样的东西

echo date( 'Y-m-d', strtotime("-1 day"));
echo date( 'Y-m-d', strtotime("-1 week"));
echo date( 'Y-m-d', strtotime("-1 month"));
echo date( 'Y-m-d', strtotime("-1 year"));

Answer 2

您可以使用DateTime类：

$date = new DateTime('now');
echo $date->format('Y-m-d');

$date = new DateTime('-1 day');
echo $date->format('Y-m-d');

$date = new DateTime('-1 week');
echo $date->format('Y-m-d');

$date = new DateTime('-1 month');
echo $date->format('Y-m-d');

$date = new DateTime('-3 months');
echo $date->format('Y-m-d');

有关详细信息，请参阅Supported Date and Time Formats。

如何在PHP中获取基于当天的日期？

2 个答案: