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Bug #16238 some HTTP vars seems to have no value
Submitted: 2002-03-23 14:41 UTC Modified: 2002-03-25 17:21 UTC
From: akos at docca dot hu Assigned:
Status: Not a bug Package: HTTP related
PHP Version: 4.1.2 OS: Linux
Private report: No CVE-ID: None
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From: akos at docca dot hu
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 [2002-03-23 14:41 UTC] akos at docca dot hu 
I don't know is this a bug or feature:

The problem: some of the http vars seems to has no value referenced by $varname or by $_REQUEST["varname"] but it has the right value at $_GET/$_POST["varname"]. 
Cause:
a cookie named "varname" not deleted correctly by setcookie("varname") just truncated to "".

I have this simple code (the point is: $partner):

<?php
echo "<br> -----------------<br>REQ:<br> ";
var_dump($_REQUEST);
echo "<br> -----------------<br>GET:<br>";
var_dump($_GET);
echo "<br> -----------------<br>POST:<br> ";
var_dump($_POST);
echo "<br> -----------------<br> "; 
?>

Result:
-----------------
REQ:
array(12) { ["partner"]=> string(0) "" ["haszon"]=> string(1) "4" ["webcalendar_login"]=> string(4) "akos"  
-----------------
GET:
array(0) { } 
-----------------
POST:
array(2) { ["partner"]=> string(3) "162" ["haszon"]=> string(1) "4" } 
-----------------

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 [2002-03-23 14:49 UTC] derick@php.net 
What does this show in your example:
var_dump ($_COOKIE)

Derick
 [2002-03-23 15:09 UTC] akos at docca dot hu 
Yes, I have a cookie says partner= 
As I wrote, the problem has been solved: I had to change
setcookie("partner") 
to 
setcookie("partner", "", time() - 3600);
but I don't know exactly why. Before the upgrade (4.0.x to 4.1.2) had no matter.
 [2002-03-23 15:10 UTC] derick@php.net 
Again, what does this show in your example:
var_dump ($_COOKIE)

It's important to see this in order to check this out :)

Derick
 [2002-03-23 15:33 UTC] akos at docca dot hu 
Dear Komissar Derrick,

Here we go:
Case 1: (setcookie("partner");)
COOK:
array(10) { ["webcalendar_login"]=> string(4) "akos" ["partner"]=> string(0) "" } 

REQ:
array(11) { ["partner"]=> string(0) "" ...

POST:
array(2) { ["partner"]=> string(3) "162"


Case 2: (setcookie("partner", "", time() - 3600);

$_COOKIE contains no "partner",
POST:
array(2) { ["partner"]=> string(3) "162"
REQ:
array(11) { ["partner"]=> string(3) "162"


Sorry about my slothfulness... :)
 [2002-03-25 17:21 UTC] sniper@php.net 
This is not bug. $_REQUEST[] contains all the following
types of variables:

; This directive describes the order in which PHP registers GET, POST, Cookie,
; Environment and Built-in variables (G, P, C, E & S respectively, often
; referred to as EGPCS or GPC).  Registration is done from left to right, newer
; values override older values.
variables_order = "EGPCS"

So of course it works correctly if you delete the cookie.

--Jani
 
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