#43843 [NEW]: Documentation sites return HTTP/1.1 even if 1.0 requested -> Garbage in Output

From:             php dot net at thermoman dot de
Operating system: Irrelevant
PHP version:      Irrelevant
PHP Bug Type:     Website problem
Bug description:  Documentation sites return HTTP/1.1 even if 1.0 requested -> Garbage in Output

Description:
------------
On php.net Doc sites (e.g. http://php.net/print_r) the scripts return a
HTTP/1.1 header even if the client requested HTTP/1.0

This leads to Content-Transfer-Encoding metadata being inserted into the
websites body.

Reproduce code:
---------------
  $ telnet php3.de 80
  Trying 217.160.72.57...
  Connected to php3.de.
  Escape character is '^]'.
  HEAD /print_r HTTP/1.0
  Connection: close
  Host: de3.php.net

  HTTP/1.1 200 OK
  [..]

Expected result:
----------------
HTTP/1.0 200 OK

Actual result:
--------------
The header is generated at this point:

== schnipp == 
// Send out a proper status header
function status_header($num)
{
    // Set status text
    switch ($num) {
        case 200: $status = "OK"; break;
        case 301: $status = "Moved Permanently"; break;
        case 302: $status = "Found"; break;
        case 404: $status = "Not Found"; break;
        default: return FALSE;
    }

    // BC code for PHP < 4.3.0
    @header("HTTP/1.1 $num $status");
    @header("Status: $num $status", TRUE, $num);

    return TRUE;
}
== schnapp ==

See http://trac.wordpress.org/ticket/3886 for the exact same problem
including a patch for older wordpress versions.

Here is a screenshot of the website with garbage in it when requested via
squid proxy server with HTTP/1.0:

  http://test.thermoman.de/images/php_net_chunked_error.png

Please cross-reference bug #42402.

Credits to Timm Friebe for the deeper look inside.

-- 
Edit bug report at http://bugs.php.net/?id=43843&edit=1
-- 
Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=43843&r=trysnapshot44
Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=43843&r=trysnapshot52
Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=43843&r=trysnapshot53
Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=43843&r=trysnapshot60
Fixed in CVS:                 http://bugs.php.net/fix.php?id=43843&r=fixedcvs
Fixed in release:             http://bugs.php.net/fix.php?id=43843&r=alreadyfixed
Need backtrace:               http://bugs.php.net/fix.php?id=43843&r=needtrace
Need Reproduce Script:        http://bugs.php.net/fix.php?id=43843&r=needscript
Try newer version:            http://bugs.php.net/fix.php?id=43843&r=oldversion
Not developer issue:          http://bugs.php.net/fix.php?id=43843&r=support
Expected behavior:            http://bugs.php.net/fix.php?id=43843&r=notwrong
Not enough info:              http://bugs.php.net/fix.php?id=43843&r=notenoughinfo
Submitted twice:              http://bugs.php.net/fix.php?id=43843&r=submittedtwice
register_globals:             http://bugs.php.net/fix.php?id=43843&r=globals
PHP 3 support discontinued:   http://bugs.php.net/fix.php?id=43843&r=php3
Daylight Savings:             http://bugs.php.net/fix.php?id=43843&r=dst
IIS Stability:                http://bugs.php.net/fix.php?id=43843&r=isapi
Install GNU Sed:              http://bugs.php.net/fix.php?id=43843&r=gnused
Floating point limitations:   http://bugs.php.net/fix.php?id=43843&r=float
No Zend Extensions:           http://bugs.php.net/fix.php?id=43843&r=nozend
MySQL Configuration Error:    http://bugs.php.net/fix.php?id=43843&r=mysqlcfg