From:
Operating system: Ubuntu 11.04
PHP version: 5.3.5
Package: Date/time related
Bug Type: Bug
Bug description:unexpected strtotime() behavior with unix timestamps
Description:
------------
I'm working on a payment processor which unfortunately has to take several
types of date input, as a result I need to test if a date I'm being passed
is already a unix timestamp. For the most part strtotime() will return
false when passed a timestamp. There are a few edge cases where it will
return another timestamp sometime after year 2400 or before 2000. If this
is actually the expected behavior it might be worthwhile to throw a warning
in the documentation about passing strtotime() unix timestamps
Test script:
---------------
$errors = 0;
$end_date = strtotime('January 1st 2020');
$start_date = strtotime('January 1st 2001');
$bad_years = array();
while ($start_date < $end_date){
if (strtotime($start_date) !== false){
echo date ('Y-m-d', $start_date) . ' generates ' .
strtotime($start_date)
. ' ' . date('Y-m-d', strtotime($start_date)) . "\n";
$bad_years[] = date('Y', strtotime($start_date));
$errors++;
}
$start_date += 86400;
}
print_r(array_unique($bad_years));
echo "$errors errors generated\n";
Expected result:
----------------
sam.heller@sam:/var/www/development/api/app/scripts$ php test.php
Array
(
)
0 errors generated
sam.heller@sam:/var/www/development/api/app/scripts$
Actual result:
--------------
sam.heller@sam:/var/www/development/api/app/scripts$ php test.php
2001-09-14 generates 51442009244 3600-02-18
2001-09-15 generates -62163017947 0000-02-18
2001-09-25 generates 64064790099 4000-02-18
2001-09-26 generates -49540237092 0400-02-18
...
...
...
2019-05-22 generates -24294654070 1200-02-18
2019-05-23 generates 177669838738 7600-02-18
2019-06-02 generates -11671873215 1600-02-18
2019-06-03 generates 190292619593 8000-02-18
Array
(
[0] => 3600
[1] => 0000
[2] => 4000
[3] => 0400
[4] => 6800
[5] => 0800
[6] => 7200
[8] => 1200
[9] => 7600
[11] => 8000
[12] => 4400
[14] => 8400
[15] => 4800
[17] => 5200
[18] => 1600
[20] => 2000
[22] => 2400
[23] => 8800
[25] => 9200
[26] => 5600
[28] => 9600
[29] => 6000
[31] => 6400
[32] => 2800
[34] => 3200
)
1007 errors generated
sam.heller@sam:/var/www/development/api/app/scripts$
--
Edit bug report at http://bugs.php.net/bug.php?id=54048&edit=1
--
Try a snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=54048&r=trysnapshot52
Try a snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=54048&r=trysnapshot53
Try a snapshot (trunk):
http://bugs.php.net/fix.php?id=54048&r=trysnapshottrunk
Fixed in SVN:
http://bugs.php.net/fix.php?id=54048&r=fixed
Fixed in SVN and need be documented:
http://bugs.php.net/fix.php?id=54048&r=needdocs
Fixed in release:
http://bugs.php.net/fix.php?id=54048&r=alreadyfixed
Need backtrace:
http://bugs.php.net/fix.php?id=54048&r=needtrace
Need Reproduce Script:
http://bugs.php.net/fix.php?id=54048&r=needscript
Try newer version:
http://bugs.php.net/fix.php?id=54048&r=oldversion
Not developer issue:
http://bugs.php.net/fix.php?id=54048&r=support
Expected behavior:
http://bugs.php.net/fix.php?id=54048&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=54048&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=54048&r=submittedtwice
register_globals:
http://bugs.php.net/fix.php?id=54048&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=54048&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=54048&r=dst
IIS Stability:
http://bugs.php.net/fix.php?id=54048&r=isapi
Install GNU Sed:
http://bugs.php.net/fix.php?id=54048&r=gnused
Floating point limitations:
http://bugs.php.net/fix.php?id=54048&r=float
No Zend Extensions:
http://bugs.php.net/fix.php?id=54048&r=nozend
MySQL Configuration Error:
http://bugs.php.net/fix.php?id=54048&r=mysqlcfg
