php.net |  support |  documentation |  report a bug |  advanced search |  search howto |  statistics |  random bug |  login

go to bug id or search bugs for

Bug #18769 strtotime('00:01am'); returns -1 instead of timestamp
Submitted: 2002-08-07 04:01 UTC Modified: 2002-08-07 04:27 UTC
From: peka at yashuu dot de Assigned:
Status: Not a bug Package: Date/time related
PHP Version: 4.2.2 OS: Tested on Windows2000 / Unix
Private report: No CVE-ID: None
View Developer Edit
Welcome back! If you're the original bug submitter, here's where you can edit the bug or add additional notes.
If you forgot your password, you can retrieve your password here.
Password:
Status:
Package:
Bug Type:
Summary:
From: peka at yashuu dot de
New email:
PHP Version: OS:

 

 [2002-08-07 04:01 UTC] peka at yashuu dot de 
The PHP code
<?
echo strtotime('00:01am');
?>
produces -1 as return instead of a correct timestamp

I tested on W2k/Apache/PHP 4.2.2, afterwards uploading it to my webspace provider who uses Unix. The bug is reproduceable there, too.

Patches

Pull Requests

History

AllCommentsChangesGit/SVN commitsRelated reports
 [2002-08-07 04:18 UTC] eru@php.net 
This is quite correct, as 0 isn't a valid hour in this time-format. To quote from date input formats:

If the time is followed by `am' or `pm' (or `a.m.' or `p.m.'), hour is restricted to run from 1 to 12, and `:minute' may be omitted (taken to be zero). `am' indicates the first half of the day, `pm' indicates the second half of the day. In this notation, 12 is the predecessor of 1: midnight is `12am' while noon is `12pm'. 

See http://www.gnu.org/manual/tar-1.12/html_chapter/tar_7.html
 [2002-08-07 04:27 UTC] peka at yashuu dot de 
So maybe there should be 2 different error states?

one for unrecogniseable string
one for recognised string, but incorrect time-format
If those two could be distinguished
 
PHP Copyright © 2001-2025 The PHP Group
All rights reserved. 		Last updated: Mon Jul 07 08:01:34 2025 UTC