DateInterval d property is 0 instead of real value 28

[bdtarcsa]

Description

The following code:

<?php
$md_1st = new DateTime("2025-03-01");
  $md_last = new DateTime("2025-03-29");
  $mn_interval = $md_1st->diff($md_last);
echo $mn_interval->days . "  " . $mn_interval->d;

Resulted in this output:

28 0

But I expected this output instead:

28 28

PHP Version

Correction
not PHP 8.3.19 PHP 8.0.30 or 7.4.33

Operating System

linux (kernel ver.: 4.18.0-553.33.1.el8_10.x86_64)

[bdtarcsa]

Anyway, it is working well in 8.1.25

[nielsdos]

It works on my machine and on 3v4l: https://3v4l.org/EXC9L
Is this maybe timezone related?

[bdtarcsa]

I do not know. Maybe. Based on DateTime object the timezone is Europe/Budapest:

object(DateTime)#6 (3) {
["date"]=>
string(26) "2025-03-01 00:00:00.000000"
["timezone_type"]=>
int(3)
["timezone"]=>
string(15) "Europe/Budapest"
}
object(DateTime)#7 (3) {
["date"]=>
string(26) "2025-03-29 00:00:00.000000"
["timezone_type"]=>
int(3)
["timezone"]=>
string(15) "Europe/Budapest"
}

[hormus]

DateTimeInterface::diff the date 2025-02-28 23:00:00 UTC (2025-03-01 00:00:00 Europe/Budapest) is used instead of the real time before php version 8.1..
Why it happens to your php version 8.3.19 is hard to say. Please, Can you test what the timezone_version_get() function returns?

[bdtarcsa]

The timezone_version_get() function returns with this:
2025.2

[bdtarcsa]

Sorry, I was looking at the wrong version number of PHP.

Correct version numbers are 8.0.30 and 7.4.33.

As I can see in the snipett the result is the same what I detected.

On my dev machine the PHP version is 8.1.25 and timezone version is 2023.3 and there is no problem.

And as I said earlier there was no problem in November for example or in last 8 years. Interesting.

[carlosbuenosvinos]

I don't see the issue. As @nielsdos mentions, checking all PHP versions, behaviour is consistent.

[nielsdos]

Correct version numbers are 8.0.30 and 7.4.33.

These versions have long been out of bugfix support, the lowest bugfix-supported version is 8.3.x. Given that this works in those versions I'm closing this as invalid.