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Bug #46639 setcookie with past date fails to delete cookie if path not set
Submitted: 2008-11-21 15:20 UTC Modified: 2008-11-21 23:10 UTC
From: simon at incarnis dot com Assigned:
Status: Not a bug Package: *Web Server problem
PHP Version: 5.2.6 OS: Solaris 10
Private report: No CVE-ID: None
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From: simon at incarnis dot com
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 [2008-11-21 15:20 UTC] simon at incarnis dot com
Description:
------------
Cookie is created with an 8 hour expiry time, supplying only the name, value and expire parameters.

Attempt to remove cookie using setcookie with the same name, a null value and an expire parameter of -1 hours.

Cookie not removed.

Supplying the (supposedly optional) path parameter set to "/" successfully removes the cookie.



Reproduce code:
---------------
setcookie("user", $_SESSION[user], mktime()+(60*60*8));  


...
...

setcookie("user",NULL,mktime()-3600);       

Expected result:
----------------
Cookie should not exist.

Actual result:
--------------
Cookie does exist. Add a path parameter of "/" to the removal call and the cookie is removed.

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 [2008-11-21 15:53 UTC] jani@php.net
This is just how it works. No bug here.
 [2008-11-21 23:10 UTC] simon at incarnis dot com
Is this documented anywhere?
And isn't it kind of strange to call the parameter optional if it isn't?
 
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