From:             chris at cmbuckley dot co dot uk
Operating system: 
PHP version:      5.4Git-2012-10-30 (snap)
Package:          Date/time related
Bug Type:         Bug
Bug description:DateTime::modify() start of week inconsistency

Description:
------------
Calling $dt->modify("Monday this week") for all dates 13–19 May 2012
(Sun–Sat) 
result in the same date (2012-05-14), suggesting that "this week" runs
Sun–Sat. 
However, calling $dt->modify("Sunday this week") gives the "next" Sunday
(2012-
05-20) for the same range.

On a related note, the documentation on relative date formats is lacking on
the 
behaviour of this and strtotime when used with locales; one might expect
the 
start of the week to be interpreted from LC_TIME.

Test script:
---------------
<?php

$dt = new DateTime("2012-05-13");
$dt->modify("Sunday this week");
var_dump($dt->format('r'));

Expected result:
----------------
string(31) "Sun, 13 May 2012 00:00:00 +0000"

Actual result:
--------------
string(31) "Sun, 20 May 2012 00:00:00 +0000"

-- 
Edit bug report at https://bugs.php.net/bug.php?id=63392&edit=1
-- 
Try a snapshot (PHP 5.4):   
https://bugs.php.net/fix.php?id=63392&r=trysnapshot54
Try a snapshot (PHP 5.3):   
https://bugs.php.net/fix.php?id=63392&r=trysnapshot53
Try a snapshot (trunk):     
https://bugs.php.net/fix.php?id=63392&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=63392&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=63392&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=63392&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=63392&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=63392&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=63392&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=63392&r=notwrong
Not enough info:            
https://bugs.php.net/fix.php?id=63392&r=notenoughinfo
Submitted twice:            
https://bugs.php.net/fix.php?id=63392&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=63392&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=63392&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=63392&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=63392&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=63392&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=63392&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=63392&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=63392&r=mysqlcfg

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