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Request #69122 strtotime and DateTime fail to parse certain strings with fractional seconds
Submitted: 2015-02-26 00:50 UTC Modified: 2022-05-13 14:44 UTC
Votes:1
Avg. Score:1.0 ± 0.0
Reproduced:0 of 0 (0.0%)
From: alexander dot minges at gmail dot com Assigned:
Status: Wont fix Package: Date/time related
PHP Version: 5.6.6 OS: Linux 3.18.7 x86_64 GNU/Lin
Private report: No CVE-ID: None
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 [2015-02-26 00:50 UTC] 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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 [2015-02-26 01:03 UTC] requinix@php.net
-Type: Bug +Type: Feature/Change Request
 [2015-02-26 01:03 UTC] 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.
 [2015-09-27 09:59 UTC] 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)
 [2016-01-12 08:43 UTC] salsi at icosaedro dot it 
Related To: Bug #71345
 [2022-05-13 14:44 UTC] derick@php.net
-Status: Open +Status: Wont fix
 [2022-05-13 14:44 UTC] derick@php.net 
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.
 
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