Online PHP editor | refs for c7VGZ

<?php if (class_exists('DateTime')) { $date = new DateTime('2013-10-31'); $date->modify('-1 month'); printf("2013-10-31, -1 month: %s\n", $date->format('m')); $date = new DateTime('2013-10-31'); $date->modify('first day 1 month ago'); printf("2013-10-31, first day 1 month ago: %s\n", $date->format('m')); } else { print 'Not supported.'; }