From: salmanarshad2000 at yahoo dot com
Operating system:
PHP version: 5.4.9
Package: Date/time related
Bug Type: Bug
Bug description:strtotime seems to use both sunday and monday as start of week
Description:
------------
Weeks start on Sunday or Monday. However, in this regard:
1) strtotime behavior is not documented.
2) strtotime produces inconsistent results when "this week" is used.
Sample dates from month of December 2012 used the the test script:
Mon 2012-12-03
Tue 2012-12-04
Wed 2012-12-05
Thu 2012-12-06
Fri 2012-12-07
Sat 2012-12-08
Sun 2012-12-09
Mon 2012-12-10
Tue 2012-12-11
Wed 2012-12-12
Thu 2012-12-13
Fri 2012-12-14
Sat 2012-12-15
Sun 2012-12-16
Test script:
---------------
// function strtotime called on Sun 2012-12-09
echo date("D Y-m-d", strtotime("monday this week",
strtotime("2012-12-09"))); // Mon 2012-12-10
echo date("D Y-m-d", strtotime("sunday this week",
strtotime("2012-12-09"))); // Sun 2012-12-16
// function strtotime called on Mon 2012-12-10
echo date("D Y-m-d", strtotime("monday this week",
strtotime("2012-12-10"))); // Mon 2012-12-10
echo date("D Y-m-d", strtotime("sunday this week",
strtotime("2012-12-10"))); // Sun 2012-12-16
Expected result:
----------------
If Sunday is start of the week then "sunday this week" be less than "monday
this week":
// function strtotime called on Sun 2012-12-09
echo date("D Y-m-d", strtotime("monday this week",
strtotime("2012-12-09"))); // Mon 2012-12-10
echo date("D Y-m-d", strtotime("sunday this week",
strtotime("2012-12-09"))); // Sun 2012-12-09
// function strtotime called on Mon 2012-12-10
echo date("D Y-m-d", strtotime("monday this week",
strtotime("2012-12-10"))); // Mon 2012-12-10
echo date("D Y-m-d", strtotime("sunday this week",
strtotime("2012-12-10"))); // Sun 2012-12-09
If Monday is start of the week then "monday this week" should return
different values on sunday and monday:
// function strtotime called on Sun 2012-12-09
echo date("D Y-m-d", strtotime("monday this week",
strtotime("2012-12-09"))); // Mon 2012-12-03
echo date("D Y-m-d", strtotime("sunday this week",
strtotime("2012-12-09"))); // Sun 2012-12-09
// function strtotime called on Mon 2012-12-10
echo date("D Y-m-d", strtotime("monday this week",
strtotime("2012-12-10"))); // Mon 2012-12-10
echo date("D Y-m-d", strtotime("sunday this week",
strtotime("2012-12-10"))); // Sun 2012-12-16
Actual result:
--------------
See test script, actual result is present alongside each line.
--
Edit bug report at https://bugs.php.net/bug.php?id=63740&edit=1
--
Try a snapshot (PHP 5.4):
https://bugs.php.net/fix.php?id=63740&r=trysnapshot54
Try a snapshot (PHP 5.3):
https://bugs.php.net/fix.php?id=63740&r=trysnapshot53
Try a snapshot (trunk):
https://bugs.php.net/fix.php?id=63740&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=63740&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=63740&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=63740&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=63740&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=63740&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=63740&r=support
Expected behavior: https://bugs.php.net/fix.php?id=63740&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=63740&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=63740&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=63740&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=63740&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=63740&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=63740&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=63740&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=63740&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=63740&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=63740&r=mysqlcfg
