ID: 47178
User updated by: wharmby at uk dot ibm dot com
Reported By: wharmby at uk dot ibm dot com
Status: Bogus
Bug Type: Zlib Related
Operating System: Windows XP
PHP Version: 6CVS-2009-01-21 (snap)
Assigned To: mike
New Comment:
Hi Mike
Can you expand on your reason for closing this defect as bogus a
little more please given that:
(1) The same test produces different results on php 5.2 and 5.3,
i.e the output from gzencode() with FORCE_DEFLATE includes the zlib
headers in both cases.
(2) The PHP manual says for the gzencode() option 'encoding mode'
"If you use FORCE_DEFLATE, you get a standard zlib deflated
string (inclusive zlib headers) after the gzip file header
but without the trailing crc32 checksum. "
This suggests that the output should include zlib headers.
So if the PHP 6 behaviour is correct does this not mean there is a
bug in both PHP 5 code and description of the command in the PHP
manual ? I raised the bug against PHP 6 as its behaviour differed to
previous releases and I assumed it was a bug in the new zlib code
but if the bug lies in PHP % I am happy to fix up the new PHPT's and
open a defect against PHP 5.
Regards
Andy
Andy Wharmby
E-mail: [email protected]
Previous Comments:
------------------------------------------------------------------------
[2009-02-28 14:01:33] [email protected]
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
Of course raw deflate encoded data does not have a gzip header.
------------------------------------------------------------------------
[2009-01-21 11:41:35] wharmby at uk dot ibm dot com
New tests dropped for gzencode dropped to php 5.2, 5.3 and 6.
ext/zlib/tests/gzencode_variation2
ext/zlib/tests/gzencode_variation2-win32
in PHP 6 both tagged with XFAIL sections referencing this defect
------------------------------------------------------------------------
[2009-01-21 10:27:36] wharmby at uk dot ibm dot com
Description:
------------
Missing gzip headers in output from gzencode() when FORCE_DEFLATE
option specified.
Problem persists for all values for $level argument.
Problem seen at PHP 6 level only.
I will be dropping some new PHPT shortly; the PHP 6 version will be
tagged with XFAIL section because of this defect.
Reproduce code:
---------------
<?php
var_dump(bin2hex(gzencode(b"Hello World", -1, FORCE_GZIP)));
var_dump(bin2hex(gzencode(b"Hello World", -1, FORCE_DEFLATE)));
?>
Expected result:
----------------
Based on output for same script from 5.2/5.3 I expect something like:
unicode(62)
"1f8b0800000000000003f348cdc9c95708cf2fca49010056b1174a0b000000"
unicode(58)
"1f8b0800000000000003789cf348cdc9c95708cf2fca490100180b041d"
Actual result:
--------------
unicode(62)
"1f8b080000000000000bf348cdc9c95708cf2fca49010056b1174a0b000000"
unicode(38) "789cf348cdc9c95708cf2fca490100180b041d"
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=47178&edit=1
