Edit report at http://bugs.php.net/bug.php?id=53444&edit=1
ID: 53444
Updated by: ahar...@php.net
Reported by: h...@php.net
Summary: get_headers and $http_response_header returns
unusable formatting
-Status: Feedback
+Status: Bogus
Type: Bug
Package: Streams related
PHP Version: 5.3.3
Block user comment: N
Private report: N
New Comment:
I'm pretty sure Ilia intended that as a rhetorical question.
hm2k, please don't reopen bugs that have been closed by a core
developer just because you disagree with the resolution. It's not
the first time you've done it, and to be honest, combined with the
constant questioning of whether the triager/assignee is doing the
right thing, it's pretty unfriendly.
Previous Comments:
------------------------------------------------------------------------
[2010-12-13 12:17:15] h...@php.net
Firstly, iliaa you need to learn how to correctly manage bugs.
You don't just set them to bogus if you're expecting feedback.
I can see that you're expecting feedback as you have asked a question.
To answer your question: if you have tried to use these headers for
anything
useful, you will see that it's impossible to properly distinguish which
header
is from which request.
For example, in the "get_headers format with keys" test, there is
absolutely no
way to be sure which request returned the values in [Set-Cookie], you
can only
assume or guess.
Another example, with the $http_response_header format, there is no
finite way
to distinguish one set of responses from another, you can only guess by
separating by the status line, however if the headers were poisoned it
would
render this technique useless.
In summary, the formats in which the headers are returned is unusable.
The ideal solution would be to separate the headers as they are
gathered, giving
clear boundaries where one ends and another starts. This should be done
natively.
------------------------------------------------------------------------
[2010-12-12 19:40:42] il...@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
What about the formatting is unusable? In the event of multiple headers
the
returned values are arrays representing elements of duplicate
headers...
This is the intended functionality.
------------------------------------------------------------------------
[2010-12-11 19:40:45] h...@php.net
I am aware of the reason I am seeing multiple headers. Multiple headers
are what I
am expecting.
I am aware that the URL is redirecting (as per bug #50719), following
redirects is
what I am expecting.
The issue here is the formatting which is unusable. You should address
this issue.
------------------------------------------------------------------------
[2010-12-11 16:16:27] il...@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
The reason you get multiple headers is because the website you are
trying to
access is redirecting the URL and by default the headers from all
requests are
being returned. If you don't want redirects to be followed, set the
stream context
parameter max_redirects to 0.
------------------------------------------------------------------------
[2010-12-01 23:38:50] h...@php.net
Description:
------------
The get_headers() function and the $http_response_header variable often
returns multiple headers combined into a completely unusable format.
Test script:
---------------
<pre>
<?php
/*
The get_headers() function and the $http_response_header variable often
returns
multiple headers combined into a completely unusable format.
*/
echo "Testing the \$http_response_header format\n";
file_get_contents('http://google.com/');
print_r($http_response_header);
echo "Testing the normal get_headers format\n";
$headers=get_headers('http://google.com/');
print_r($headers);
echo "Testing the get_headers format with keys\n";
$headers=get_headers('http://google.com/',1);
print_r($headers);
?>
Expected result:
----------------
Each set of headers from each request should be separated into another
array, rather than simply appended to the existing ones.
There is currently no safe way to separate the returned values into a
usable format. The get_headers format with keys is the worst offender of
this.
Actual result:
--------------
Testing the $http_response_header format
Array
(
[0] => HTTP/1.0 301 Moved Permanently
[1] => Location: http://www.google.com/
[2] => Content-Type: text/html; charset=UTF-8
[3] => Date: Wed, 01 Dec 2010 22:36:17 GMT
[4] => Expires: Fri, 31 Dec 2010 22:36:17 GMT
[5] => Cache-Control: public, max-age=2592000
[6] => Server: gws
[7] => Content-Length: 219
[8] => X-XSS-Protection: 1; mode=block
[9] => HTTP/1.0 302 Found
[10] => Location: http://www.google.co.uk/
[11] => Cache-Control: private
[12] => Content-Type: text/html; charset=UTF-8
[13] => Set-Cookie:
PREF=ID=4a205a8a49c12cc1:FF=0:TM=1291242977:LM=1291242977:S=nhA-vebjo6ayX0bQ;
expires=Fri, 30-Nov-2012 22:36:17 GMT; path=/; domain=.google.com
[14] => Set-Cookie:
NID=41=LcFt9zVP6L3dEVMKDUeNblPFQVRlOJaak9BjEUnZErgDkDh9yjljWhydKUteQdcqGh4PM0gaVJlyLT6CEu6K_LpFYJhRJRMkgy7-u45iMOa4xvItP26T_03rqUm-Lrrv;
expires=Thu, 02-Jun-2011 22:36:17 GMT; path=/; domain=.google.com;
HttpOnly
[15] => Date: Wed, 01 Dec 2010 22:36:17 GMT
[16] => Server: gws
[17] => Content-Length: 221
[18] => X-XSS-Protection: 1; mode=block
[19] => HTTP/1.0 200 OK
[20] => Date: Wed, 01 Dec 2010 22:36:17 GMT
[21] => Expires: -1
[22] => Cache-Control: private, max-age=0
[23] => Content-Type: text/html; charset=ISO-8859-1
[24] => Set-Cookie:
PREF=ID=16ffcfbf48f03139:FF=0:TM=1291242977:LM=1291242977:S=Niy-I-NoOBYJK2Tl;
expires=Fri, 30-Nov-2012 22:36:17 GMT; path=/; domain=.google.co.uk
[25] => Set-Cookie:
NID=41=eXX6NtkDo7xtT_Y7l3MVRtVznVjPE0fUUwfcmcSTXOX_80oJhSDTi_NJvidjgq_fwl3xOTvMTXatxlUqJPZsSPk2b8jIZ-oG4_tO9Eyf_beK0jqoJ20u72Ukhsydzxih;
expires=Thu, 02-Jun-2011 22:36:17 GMT; path=/; domain=.google.co.uk;
HttpOnly
[26] => Server: gws
[27] => X-XSS-Protection: 1; mode=block
)
Testing the normal get_headers format
Array
(
[0] => HTTP/1.0 301 Moved Permanently
[1] => Location: http://www.google.com/
[2] => Content-Type: text/html; charset=UTF-8
[3] => Date: Wed, 01 Dec 2010 22:36:17 GMT
[4] => Expires: Fri, 31 Dec 2010 22:36:17 GMT
[5] => Cache-Control: public, max-age=2592000
[6] => Server: gws
[7] => Content-Length: 219
[8] => X-XSS-Protection: 1; mode=block
[9] => HTTP/1.0 302 Found
[10] => Location: http://www.google.co.uk/
[11] => Cache-Control: private
[12] => Content-Type: text/html; charset=UTF-8
[13] => Set-Cookie:
PREF=ID=1c5409426fc05ac7:FF=0:TM=1291242978:LM=1291242978:S=Gq5q1jDdprguyJVX;
expires=Fri, 30-Nov-2012 22:36:18 GMT; path=/; domain=.google.com
[14] => Set-Cookie:
NID=41=YVFzP9yX2jgAGZzNfMYIIjZ2BE3FBZGe35hvkcZnv_vXG_Y6-3WWfeY3X5_B7ggaA7-bLOR2WihGFyFTo_9etxMb-o5KbD6wxs3chDweWERpzOaRzSwRdKZZ0r469lOq;
expires=Thu, 02-Jun-2011 22:36:18 GMT; path=/; domain=.google.com;
HttpOnly
[15] => Date: Wed, 01 Dec 2010 22:36:18 GMT
[16] => Server: gws
[17] => Content-Length: 221
[18] => X-XSS-Protection: 1; mode=block
[19] => HTTP/1.0 200 OK
[20] => Date: Wed, 01 Dec 2010 22:36:18 GMT
[21] => Expires: -1
[22] => Cache-Control: private, max-age=0
[23] => Content-Type: text/html; charset=ISO-8859-1
[24] => Set-Cookie:
PREF=ID=72fb7f7330dc6dda:FF=0:TM=1291242978:LM=1291242978:S=8hdaRNIKWI_17QQW;
expires=Fri, 30-Nov-2012 22:36:18 GMT; path=/; domain=.google.co.uk
[25] => Set-Cookie:
NID=41=emzDdkZVlIzPUExRMV6yXykCd0Jqrc665mzd5smnyV-MCBqEeC7wEndKmpsRqgb5M3_2dfdEK1Fbjwq0OPd87oz9UFjVYXqPqKABcPHtp_FWZw4rUluDtHeBI04rCyHH;
expires=Thu, 02-Jun-2011 22:36:18 GMT; path=/; domain=.google.co.uk;
HttpOnly
[26] => Server: gws
[27] => X-XSS-Protection: 1; mode=block
)
Testing the get_headers format with keys
Array
(
[0] => HTTP/1.0 301 Moved Permanently
[Location] => Array
(
[0] => http://www.google.com/
[1] => http://www.google.co.uk/
)
[Content-Type] => Array
(
[0] => text/html; charset=UTF-8
[1] => text/html; charset=UTF-8
[2] => text/html; charset=ISO-8859-1
)
[Date] => Array
(
[0] => Wed, 01 Dec 2010 22:36:18 GMT
[1] => Wed, 01 Dec 2010 22:36:18 GMT
[2] => Wed, 01 Dec 2010 22:36:18 GMT
)
[Expires] => Array
(
[0] => Fri, 31 Dec 2010 22:36:18 GMT
[1] => -1
)
[Cache-Control] => Array
(
[0] => public, max-age=2592000
[1] => private
[2] => private, max-age=0
)
[Server] => Array
(
[0] => gws
[1] => gws
[2] => gws
)
[Content-Length] => Array
(
[0] => 219
[1] => 221
)
[X-XSS-Protection] => Array
(
[0] => 1; mode=block
[1] => 1; mode=block
[2] => 1; mode=block
)
[1] => HTTP/1.0 302 Found
[Set-Cookie] => Array
(
[0] =>
PREF=ID=2325ca533177d4ef:FF=0:TM=1291242978:LM=1291242978:S=nOg-8n0YOwaShUAK;
expires=Fri, 30-Nov-2012 22:36:18 GMT; path=/; domain=.google.com
[1] =>
NID=41=R4dJOFuh4Jh_rqx2gNOgUJAjgn9ooyONvaut5VUv18l7G58_9NIMP4WWLWdY4_8hgsVQPdpzljkjZHwxmvKjROrM1-52DndexrKzVs52oyysf93A_HlBpc2B8sRb5s1-;
expires=Thu, 02-Jun-2011 22:36:18 GMT; path=/; domain=.google.com;
HttpOnly
[2] =>
PREF=ID=5375620b1f946c18:FF=0:TM=1291242978:LM=1291242978:S=HpY6OMdBxJ5saTyh;
expires=Fri, 30-Nov-2012 22:36:18 GMT; path=/; domain=.google.co.uk
[3] =>
NID=41=Hif27kRrMTf26VBtWJg8uOojHHEUZGp1w-a-IJVRQIGZJb3RwR9qPSK8hPtPni9pTcljP9WuLfFUgkReiTQJLpJTLuzG4Ymlo_dinxubk2XHC9sXFzvkIxWtZ0lEnLAZ;
expires=Thu, 02-Jun-2011 22:36:18 GMT; path=/; domain=.google.co.uk;
HttpOnly
)
[2] => HTTP/1.0 200 OK
)
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/bug.php?id=53444&edit=1
