How to get previous year using PHP

Question

How am I able to get the value of the previous year using PHP. Are there any predefined functions for it?

Answer 1

function affffdate($vardate,$added)
{
$data = explode("-", $vardate);
$date = new DateTime();            
$date->setDate($data[0], $data[1], $data[2]);
$date->modify("".$added."");
$day= $date->format("Y-m-d");
return $day;    
}

echo "Example : " . affffdate("2010-08-01","-1 year");