Req #71345 [Com]: DateTime::__construct failed to parse fraction with more than 9 digits.
Edit report at https://bugs.php.net/bug.php?id=71345&edit=1
ID: 71345
Comment by: jan dot espen dot oversand at cerpus dot com
Reported by: iceberg_young at 126 dot com
Summary: DateTime::__construct failed to parse fraction with
more than 9 digits.
Status: Open
Type: Feature/Change Request
Package: Date/time related
Operating System: Any
PHP Version: 7.0.2
Block user comment: N
Private report: N
New Comment:
Unfortunately I don't have the resources available to verify with a build of php-src right now.
But, I think, maybe this is related to the max length of 8 at line 1245 of https://github.com/php/php-src/blob/master/ext/date/lib/parse_date.re
time->us = timelib_get_frac_nr(&ptr, 8);
Maybe if that was increased to at least 9 (nanosecond) precision. Other systems are doing nanosecond
precision and interoperability problems will occur with this limitation.
Previous Comments:
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[2016-06-14 11:18:43] mkroese at eljakim dot nl
Encountered this one today too, while parsing actual timestamps received from another party.
Following paste shows it still works up to 8 digits, and fails at 9 (without a timezone suffix,
which makes the error message even more cryptic):
https://3v4l.org/pMvig
It also shows that the fraction isn't handled correctly with 8 digits (23:59:59.1000000)
------------------------------------------------------------------------
[2016-01-12 08:43:47] salsi at icosaedro dot it
Might be related to bug #69122 "strtotime and DateTime fail to parse certain strings with
fractional seconds".
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[2016-01-12 06:22:18] iceberg_young at 126 dot com
Description:
------------
DateTime::__construct cannot parse [W3] datetime format with fraction of second has more than **9**
digits.
E.g.
new \DateTime("2016-01-01T01:02:03.123456789-01:02");
will fail, while
new \DateTime("2016-01-01T01:02:03.12345678-01:02");
is ok.
Tried PHP version: 5.5.26 and 7.0.2
Tried OS: CentOS 6.7, openSUSE Tumbleweed, Windows 7
---
[W3]: http://www.w3.org/TR/NOTE-datetime-970915
Test script:
---------------
<?php
$w3 = new \DateTime("2016-01-01T01:02:03.123456789-01:02");
echo $w3->format("Y-m-d\TH:i:s.uP");
Expected result:
----------------
(No exception throw!)
2016-01-01T01:02:03.123457-01:02
Actual result:
--------------
PHP Warning: Uncaught exception 'Exception' with message 'DateTime::__construct():
Failed to parse time string (2016-01-01T01:02:03.123456789-01:02) at position 0 (2): The timezone
could not be found in the database' in php shell code:1
------------------------------------------------------------------------
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Edit this bug report at https://bugs.php.net/bug.php?id=71345&edit=1
Thread (5 messages)