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

Question

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

Answer 1

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

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