Req #69122 [Opn->Wfx]: strtotime and DateTime fail to parse certain strings with fractional seconds

From: Date: Fri, 13 May 2022 14:44:05 +0000
Subject: Req #69122 [Opn->Wfx]: strtotime and DateTime fail to parse certain strings with fractional seconds
References: 1  Groups: php.bugs 
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Edit report at https://bugs.php.net/bug.php?id=69122&edit=1

 ID:                 69122
 Updated by:         derick@php.net
 Reported by:        alexander dot minges at gmail dot com
 Summary:            strtotime and DateTime fail to parse certain strings
                     with fractional seconds
-Status:             Open
+Status:             Wont fix
 Type:               Feature/Change Request
 Package:            Date/time related
 Operating System:   Linux 3.18.7 x86_64 GNU/Lin
 PHP Version:        5.6.6
 Block user comment: N
 Private report:     N

 New Comment:

I am going to have to close this one, as it would cause ambiguities in the parser. Unfortunately, we
can't make the parser smart enough to understand *every format* that you throw at it without
making it mega complex.


Previous Comments:
------------------------------------------------------------------------
[2016-01-12 08:43:49] salsi at icosaedro dot it

Related To: Bug #71345

------------------------------------------------------------------------
[2015-09-27 09:59:35] salsi at icosaedro dot it

I run into this issue just today, trying to parse ODS files with PHPExcel, where some properties
contain a timestamp with many fractional digits. Apparently strtotime() always returns false if
there are more than 7 decimals. For example:

var_dump(strtotime("1970-01-02 00:00:00.000 GMT"));
// int(86400), ok

var_dump(strtotime("1970-01-02 00:00:00.00000000 GMT"));
// expected: int(86400), got: bool(false)

------------------------------------------------------------------------
[2015-02-26 01:03:51] requinix@php.net

The most it could do is ignore the microseconds.

Meanwhile
  DateTime::createFromFormat("M d H:i:s.u Y T", "Feb 25 23:38:22.226 2015 GMT")
works fine.

------------------------------------------------------------------------
[2015-02-26 00:50:51] alexander dot minges at gmail dot com

Description:
------------
strtotime fails to parse strings in the format "Feb 25 23:38:22.226 2015 GMT" while
"Feb 25 23:38:22 2015 GMT" is parsed fine. The same applies to creating a DateTime object.

Test script:
---------------
<?php
    //This works
    echo strtotime("Feb 25 23:38:22 2015 GMT");
    //This one does not
    echo strtotime("Feb 25 23:38:22.226 2015 GMT");
?>

Expected result:
----------------
1424907502
1424907502

Actual result:
--------------
1424907502


------------------------------------------------------------------------



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Edit this bug report at https://bugs.php.net/bug.php?id=69122&edit=1

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