如何计算年龄和天数？

Question

I just searched, didn't get what i need.

I just want to convert the age in days like

20123 days

and in seconds like

432344344 seconds

. How can i do it?

If i get the solution to days, i can divide it for seconds.

--- I am looking for PHP solution

Answer 1

PHP

$birthday = '1989-03-06';
$now = date("Y-m-d");
echo 'You are '. date_diff(date_create($birthday), date_create($now))->format('%a days old');