- var_dump: documentation ( source)
<?php
$m = new \DateTime('today midnight +1 day');
var_dump($m);die;
$startDate = new \DateTime('-1 day');
$finishDate = new \DateTime('+4 day');
$period = new \DatePeriod($startDate, new \DateInterval('P1D'), $finishDate);
var_dump($period->start);