#33225 [Opn->Bgs]: PHP sends multiple Status headers

ID:               33225
Updated by:       vrana@php.net
Reported By:      phpbugs at thequod dot de
-Status:           Open
+Status:           Bogus
Bug Type:         Documentation problem
Operating System: *
PHP Version:      5.0.4
New Comment:

You can set HTTP response code by header("HTTP/ ") and that's what is
documented. "The HTTP status header line will always be the first sent
to the client" is pointing to this header("HTTP/ "), not
header("Status: ").


Previous Comments:
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[2005-06-06 00:02:21] sniper@php.net

If apache behaves like that (and CGI), it's not a bug.
Do NOT send multiple status headers if you wish it to work as you
expect.


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[2005-06-05 16:59:14] nlopess@php.net

Could you please check the last comment please?
And then return the bug to us if needed.

Thanks,
Nuno

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[2005-06-05 13:45:31] phpbugs at thequod dot de

Sniper, please use a FastCGI-compiled PHP-CGI binary and
don't inspect the apache output.

If you would have been running php-fastcgi on your Apache2
server you would've gotten a "Internal server error",
because fastcgi dies on multiple Status headers.

It's not only a documentation problem, but causes Internal
Server errors with apache and fastcgi, because fastcgi is
very strict about the "There has to be exact one status
code in the cgi response".

------------------------------------------------------------------------

[2005-06-03 23:18:04] sniper@php.net

Here's what I get with Apache2 and your script:

HTTP/1.1 302 Found
Date: Fri, 03 Jun 2005 21:15:54 GMT
Server: Apache/2.0.52 (Fedora)
X-Powered-By: PHP/5.1.0-dev
Status: 301
Location: http://www.example.org
Connection: close
Content-Type: text/html; charset=ISO-8859-1

IMO, this is not a bug in either SAPI. Just documentation issue.


------------------------------------------------------------------------

[2005-06-03 01:56:26] phpbugs at thequod dot de

Description:
------------
Multiple "Status" lines get send when
using "header('Location: url')", which produces an
additional 302 (REDIRECT) status code.

This causes FastCGI (at least) to produce a 500 Internal
Server Error:
FastCGI: comm with server "/path/to/fcgi-starter" aborted:
error parsing headers: duplicate header 'status'


Documentation
(http://us2.php.net/manual/en/function.header.php) says:
Note:  The HTTP status header line will always be the
first sent to the client [[NOT TRUE! - reproduce: echo
"<?php header('Status: 304'); ?>" | php5/bin/php-fcgi]],
regardless of the
actual header() call being the first or not. The status
may be overridden by calling header() with a new status
line at any time unless the HTTP headers have already been
sent [[NOT TRUE! - this bug]].

-----------------------------------
configure (both PHP5 and PHP4):
./configure --enable-memory-limit
--enable-force-cgi-redirect  \
--enable-track-vars --with-pcre-regex --with-mysql
--without-sqlite \
--with-zlib --with-bz2 --enable-mbstring --with-openssl
--enable-exif \
--with-dom=shared --with-ttf=shared --with-gd=shared
--enable-calendar \
--with-iconv --enable-inline-optimization
--enable-gd-native-ttf \
--with-ldap --with-ldap-sasl \
--with-gettext \
--without-mm --enable-fastcgi --prefix=/home/daniel/php5


Reproduce code:
---------------
$ cat << "?>" | php5/bin/php-fcgi
<?php
header( 'Status: 404' );
header( 'Status: 301' );
header( 'Location: http://www.example.org' );
?>


Expected result:
----------------
Status: 301
Content-type: text/html
X-Powered-By: PHP/5.0.4
Location: http://www.example.org


Actual result:
--------------
Status: 302
Content-type: text/html
X-Powered-By: PHP/5.0.4
Status: 301
Location: http://www.example.org



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Edit this bug report at http://bugs.php.net/?id=33225&edit=1