#47178 [Opn->Bgs]: Missing gzip headers in gzencode() output

From: Date: Sat, 28 Feb 2009 14:01:33 +0000
Subject: #47178 [Opn->Bgs]: Missing gzip headers in gzencode() output
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-134280@lists.php.net to get a copy of this message 
 ID:               47178
 Updated by:       mike@php.net
 Reported By:      wharmby at uk dot ibm dot com
-Status:           Open
+Status:           Bogus
 Bug Type:         Zlib Related
 Operating System: Windows XP
 PHP Version:      6CVS-2009-01-21 (snap)
-Assigned To:      
+Assigned To:      mike
 New Comment:

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.


Previous Comments:
------------------------------------------------------------------------

[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"


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


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