Date minus 1 year?

I've got a date in this format:

2009-01-01

How do I return the same date but 1 year earlier?

Solution 1:

You can use strtotime:

$date = strtotime('2010-01-01 -1 year');

The strtotime function returns a unix timestamp, to get a formatted string you can use date:

echo date('Y-m-d', $date); // echoes '2009-01-01'

Solution 2:

Use strtotime() function:

  $time = strtotime("-1 year", time());
  $date = date("Y-m-d", $time);

Solution 3:

Using the DateTime object...

$time = new DateTime('2099-01-01');
$newtime = $time->modify('-1 year')->format('Y-m-d');

Or using now for today

$time = new DateTime('now');
$newtime = $time->modify('-1 year')->format('Y-m-d');

Solution 4:

an easiest way which i used and worked well

date('Y-m-d', strtotime('-1 year'));

this worked perfect.. hope this will help someone else too.. :)