How to make a date a day ahead | PHP?

Question

PHP

Here is the text for example:

Valid until: 09/30/15

It needs to show up a day ahead. That is, 10/01/15, not 09/31/15
How to implement this?

Answer 1

echo (new DateTime('+1 day'))->format('Y.m.d');
php.net/manual/ru/datetime.formats.relative.php

Answer 2

$date = strtotime("+1 day");
echo date('d.m.Y', $date);