<html>
<body>
$date = date_create('2019-01-01');
date_add($date, date_interval_create_from_date_string('1 year 35 days'));
echo date_format($date, 'Y-m-d');
</body>
<!-- Mirrored from www.w3schools.com/php/phptryit.asp?filename=tryphp_func_date_interval_create_from_date_string by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 02:50:58 GMT -->
</html>