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Bug #48699 $date->modify('+ 1 '. $date->format('l')) == $date
Submitted: 2009-06-26 10:48 UTC Modified: 2009-06-29 12:10 UTC
Votes:1
Avg. Score:3.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:1 (100.0%)
Same OS:1 (100.0%)
From: mehdi dot rande at gmail dot com Assigned:
Status: Not a bug Package: Date/time related
PHP Version: 5.2.10 OS: Linux
Private report: No CVE-ID: None
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 [2009-06-26 10:48 UTC] mehdi dot rande at gmail dot com 
Description:
------------
Since php 5.2.9 modify function behaviour have change, in both case "next $weekday" always go to the next specified weekday ("next weekday" > "today"), but in 5.2.9 and 5.2.10 "+1 $weekday" go to the first encoutered specified weekday including today ("next weekday" >= "today"). 

The behaviour of older php versions seems more logical to me, '+1' should have the same behaviour than 'next'.

Reproduce code:
---------------
// Since php 5.2.9
$date  = new Datetime("2009-06-01");
$date->modify("+1 ".$date->format("l")); // == ('+1 monday')
echo $date->format("Y-m-d")."\n"; 
$date->modify("next ".$date->format("l")); // == ('next monday')
echo $date->format("Y-m-d")."\n"; 


Expected result:
----------------
2009-06-08
2009-06-08

Actual result:
--------------
2009-06-01
2009-06-08

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 [2009-06-26 12:22 UTC] derick@php.net 
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php

.
 [2009-06-29 12:10 UTC] mehdi dot rande at gmail dot com 
I've triple checked the doc, it seems to make reference to the gnu input date format. gnu date command behave like this :
$ date --version
date (GNU coreutils) 7.4
$ date
Mon Jun 29 14:05:30 CEST 2009
$ date -s "1 monday" +%F
2009-07-06
$ date -s "next monday" +%F
2009-07-06

But it's true that this bug is a duplicate of #46932 wich still open, so sorry for the noise.
 
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