Online PHP editor | refs for dCYvv

<?php $foo = '2011-1-31 00:00:00'; $date = new DateTime($foo); $date->modify('1 month'); var_dump($date); $new_month = $date->format('m'); $new_day = $date->format('d'); $new_year = $date->format('Y'); $last_month_timestamp = mktime(0, 0, 0, $new_month, $new_day, $new_year); $num_days_last_month = date('t', $last_month_timestamp); $days_offset = $num_days_last_month - $new_day; $date = $date->modify('' . $days_offset . ' days'); var_dump($date);