$date = "Mar 03, 2011"; $date = strtotime($date); $date = strtotime("+7 day", $date); echo date('M d, Y', $date);
$start_date = "2015/03/02"; $date = strtotime($start_date); $date = strtotime("+7 day", $date); echo date('Y/m/d', $date);