Online PHP editor | refs for drDhf

<?php $start_date = '2014-01-01'; $end_date = '2015-01-31'; $date_regex = "/^[0-9]{4}-(0[1-9]|1[0-2])-(0[1-9]|[1-2][0-9]|3[0-1])$/"; if (!empty($start_date) & !empty($end_date) && preg_match($date_regex, $start_date) && preg_match($date_regex, $end_date)) { $start = new \DateTime($start_date); $end = new \DateTime($end_date); $intervals = []; while ($start <= $end) { $intervals[ $start->format('Y-m-d') ] = date('Y-m-t', strtotime($start->format('Y-m'))); $start->modify('first day of next month'); } echo '<pre>';print_r($intervals); }