From:
Operating system: Linux & Darwin
PHP version: 5.3.8
Package: Date/time related
Bug Type: Bug
Bug description:strtotime() returns erroneous result on nonsense DATE_RSS format date strings
Description:
------------
(Note: I was only able to test on 5.2.16, 5.3.0, and 5.3.4. Since there is
no
evidence of it being fixed in the changelog of 5.3.8, I assume it's still
there.)
The ninth of May, 2010, was a Sunday. However, if you assert to
strtotime() that
it was a Monday, it will return the Unix timestamp for Monday, May 10th.
Likewise
if you assert the ninth was a Tuesday, it will return the timestamp for the
11th;
a Wednesday the 12th, and so on right up to returning a Unix timestamp for
Saturday, 15 May 2010 if you provide it with "Saturday, 9 May 2010".
Presumably, the correct behavior is one of (1) to throw an error given a
self-
contradictory date, (2) to return nothing at all, or (3) to ignore the
day-of-the-
week element and return the Unix timestamp for the date specified (e.g. 9
May
2010). Returning the timestamp for another date altogether is wrong.
Test script:
---------------
$datestring="9 May 2010 04:24:36 GMT";
print "\"\": ".strtotime($datestring)." ".date($dateformat,
strtotime($datestri\
ng)) ."\n";
$datestring="Sun, 9 May 2010 04:24:36 GMT";
print "Sun: ".strtotime($datestring)." ".date($dateformat,
strtotime($datestrin\
g)) ."\n";
$datestring="Mon, 9 May 2010 04:24:36 GMT";
print "Mon: ".strtotime($datestring)." ".date($dateformat,
strtotime($datestrin\
g)) ."\n";
$datestring="Tue, 9 May 2010 04:24:36 GMT";
print "Tue: ".strtotime($datestring)." ".date($dateformat,
strtotime($datestrin\
g)) ."\n";
Expected result:
----------------
"": 1273379076 Sun, 09 May 2010 00:24:36 -0400
Sun: 1273379076 Sun, 09 May 2010 00:24:36 -0400
Mon: 1273379076 Sun, 09 May 2010 00:24:36 -0400
Tue: 1273379076 Sun, 09 May 2010 00:24:36 -0400
(Alternatively:
"": 1273379076 Sun, 09 May 2010 00:24:36 -0400
Sun: 1273379076 Sun, 09 May 2010 00:24:36 -0400
Mon:
Tue:
)
Actual result:
--------------
"": 1273379076 Sun, 09 May 2010 00:24:36 -0400
Sun: 1273379076 Sun, 09 May 2010 00:24:36 -0400
Mon: 1273465476 Mon, 10 May 2010 00:24:36 -0400
Tue: 1273551876 Tue, 11 May 2010 00:24:36 -0400
--
Edit bug report at https://bugs.php.net/bug.php?id=55575&edit=1
--
Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=55575&r=trysnapshot54
Try a snapshot (PHP 5.3): https://bugs.php.net/fix.php?id=55575&r=trysnapshot53
Try a snapshot (trunk): https://bugs.php.net/fix.php?id=55575&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=55575&r=fixed
Fixed in SVN and need be documented: https://bugs.php.net/fix.php?id=55575&r=needdocs
Fixed in release: https://bugs.php.net/fix.php?id=55575&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=55575&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=55575&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=55575&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=55575&r=support
Expected behavior: https://bugs.php.net/fix.php?id=55575&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=55575&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=55575&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=55575&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=55575&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=55575&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=55575&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=55575&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=55575&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=55575&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=55575&r=mysqlcfg