- var_dump: documentation ( source)
- date: documentation ( source)
- strtotime: documentation ( source)
<?php
var_dump (
date(DATE_RFC3339, strtotime('today')),
date(DATE_RFC3339, strtotime('tomorrow')),
date(DATE_RFC3339, strtotime('today at last minute')),
date(DATE_RFC3339, strtotime('tomorrow at last minute'))
);