php 日期格式 YYYY-MM-DD 从现在起减去或添加一周？

php date format YYYY-MM-DD minus or add one week from now?

提问by Adam Ramadhan

today 22-05-2011 so it should be 29-05-2011? ( plus 1 week ) 
or
today 22-05-2011 so it should be 15-05-2011? ( minus 1 week ) 

thanks for looking in.

感谢您的关注。

Adam Ramadhan

亚当·拉马丹

回答by JohnP

Use strtotime()

使用strtotime()

echo date('d-m-Y', strtotime("+1 week")); //1 week in the future
echo date('d-m-Y', strtotime("-1 week")); //1 week ago

回答by Luká? Lalinsky

You can use the DateTimeclass to do calendar calculations. For exaple, to add one week, you could use code like this:

您可以使用DateTime该类进行日历计算。例如，要添加一周，您可以使用如下代码：

$date = new DateTime('22-05-2011');
$date->modify('+1 week');

回答by John Green

strtotimewill handle this.

strtotime会处理这个问题。

$pDate = strtotime('22-05-2011 + 1 week');
echo date('d-m-Y',$pDate);

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Added: This is if you want to start from a specific date. If you just want 'today' +/- a week', mark JohnP's answer as correct. : )

补充：这是如果您想从特定日期开始。如果您只想要“今天”+/- 一周”，请将 JohnP 的答案标记为正确。:)

回答by swathi_sri

In case If you dint want to hard code today's date you can use Carbon class methods of php.

如果你不想硬编码今天的日期，你可以使用 php 的 Carbon 类方法。

Carbon::now()->subWeek(1);
Carbon::now()->addWeek(1);