Date subtraction

[eluser]garymardell[/eluser]

Code:

$previous_date = '2009-07-03';
// time() actually prints 2009-07-04
$diff = time() - strtotime($previous_date);
echo floor(($diff / (60 * 60 * 24)));

Not saying this is the best way to do it, just made your code example work.