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Bug #78778 DateTime constructor and createFromFormat behaves differently
Submitted: 2019-11-04 11:45 UTC Modified: 2021-04-06 19:18 UTC
Votes:1
Avg. Score:5.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:1 (100.0%)
Same OS:1 (100.0%)
From: boan at jfmedier dot dk Assigned: derick (profile)
Status: Not a bug Package: Date/time related
PHP Version: 7.2.24 OS:
Private report: No CVE-ID: None
 [2019-11-04 11:45 UTC] boan at jfmedier dot dk
Description:
------------
I would expect that the factory method createFromFormat should work like the constructor parameter. 

Test script:
---------------
$date = new DateTimeImmutable('2019-11-01T12:12:40.8859136+00:00');

var_dump($date);

$date = DateTimeImmutable::createFromFormat(DateTimeInterface::RFC3339_EXTENDED, '2019-11-01T12:12:40.8859136+00:00');

var_dump($date);

Expected result:
----------------
object(DateTimeImmutable) {
  ["date"]=>
  string(26) "2019-11-01 12:12:40.885913"
  ["timezone_type"]=>
  int(1)
  ["timezone"]=>
  string(6) "+00:00"
}

object(DateTimeImmutable) {
  ["date"]=>
  string(26) "2019-11-01 12:12:40.885913"
  ["timezone_type"]=>
  int(1)
  ["timezone"]=>
  string(6) "+00:00"
}

Actual result:
--------------
object(DateTimeImmutable) {
  ["date"]=>
  string(26) "2019-11-01 12:12:40.885913"
  ["timezone_type"]=>
  int(1)
  ["timezone"]=>
  string(6) "+00:00"
}

bool(false)

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 [2019-11-04 11:57 UTC] cmb@php.net
-Status: Open +Status: Verified
 [2019-11-04 11:57 UTC] cmb@php.net
Well, that doesn't look quite right: <https://3v4l.org/AADtE>.
 [2020-01-20 17:11 UTC] girgias@php.net
-Assigned To: +Assigned To: derick
 [2021-04-06 19:18 UTC] derick@php.net
-Status: Verified +Status: Not a bug
 [2021-04-06 19:18 UTC] derick@php.net
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php

The 'v' in DateTimeInterface::RFC3339_EXTENDED ('Y-m-d\TH:i:s.vP') only accepts microseconds. The constructor is more lenient and allows for additional digits to be parsed.
 
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