Add years to todays date in php

Question

I'm getting a weird date ('01/01/1970 00:00:00) when I run the following code in php:

$now = date('d/m/Y H:i:s', time());
$exp = date('d/m/Y H:i:s', strtotime($now .'+100 years'));

Answer 1

I would try something like this

$date = new DateTime();
$exp = $date->modify('+100 years')->format('d/m/Y H:i:s');

Answer 2

Try this code :

<?php
$year = date('Y-m-d H:i:s', strtotime('+5 years'));
echo $year;
?>

Output:

2022-06-26 13:29:07

Answer 3

Try following one.

$now = date('d/m/Y H:i:s', strtotime('+100 years'));

Output => 26/06/2117 18:58:07

Answer 4

Try this

date('d/m/Y H:i:s', strtotime('+100 years'));

Output :-

26/06/2117 09:31:15

Answer 5

It because you're giving the wrong date format for this function strtotime($now .'+100 years') and it returns false.

try that:

echo date('d/m/Y H:i:s', strtotime("+100 year"));

Answer 6

"The valid range of a timestamp is typically from Fri, 13 Dec 1901 20:45:54 UTC to Tue, 19 Jan 2038 03:14:07 UTC. (These are the dates that correspond to the minimum and maximum values for a 32-bit signed integer.)"

http://php.net/manual/en/function.strtotime.php

Answer 7

$d = date('Y-m-d', strtotime('+5 years'));

Answer 8

You're apparently falling into one or both the following problems:

1. a simple formatting issue (this is wrong for sure) where, since you're using / as separator, strtotime interprets days as months and vice-versa; as you can read in the documentation page for strtotime (Notes paragraph):

Dates in the m/d/y or d-m-y formats are disambiguated by looking at the separator between the various components: if the separator is a slash (/), then the American m/d/y is assumed; whereas if the separator is a dash (-) or a dot (.), then the European d-m-y format is assumed

This can be easily fixed by changing your first line from:

$now = date('d\m\Y H:i:s', time());

to:

$now = date('d-m-Y H:i:s', time());

2. the Year 2038 Problem. You can read about this too, in the same documentation page (same paragraph, right above the previous quote):

The valid range of a timestamp is typically from Fri, 13 Dec 1901 20:45:54 UTC to Tue, 19 Jan 2038 03:14:07 UTC. (These are the dates that correspond to the minimum and maximum values for a 32-bit signed integer)

If that's your case, you better use DateTime objects (as others suggested here), which do not suffer this limitation. Here's a line which should work:

$exp = date_format(date_create("+100 years"), 'd/m/Y H:i:s');

---

What is happening in your code is that:

• since you're passing a non-existing date (and maybe because of a 32-bit environment too), strtotime returns false
• when passing false to the second argument of the date function, which expects an int, false is cast to 0, which makes date return the Epoch Time.