Getting the timestamp from last saturday (every week)?

Question

first let me show you my code:

$lastWeek = date(\'m-d-Y\', strtotime(\'-1 week\'));

That\'s how to get the timestamp from last week. Is the

Answer 1

What's wrong with

$last_sat = strtotime("last Saturday"); 

EDIT

The time should be set to '00:00:00';

echo date('d-M-Y H:i:s',$last_sat);

gives

29-Jan-2011 00:00:00