ID: 45234
User updated by: kulakov74 at yandex dot ru
Reported By: kulakov74 at yandex dot ru
Status: Closed
Bug Type: Zlib Related
Operating System: Linux
PHP Version: 5.2CVS-2008-06-11 (snap)
New Comment:
Can't you check it yourself?! If you do then it is fixed.
Previous Comments:
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[2008-10-26 23:10:11] [EMAIL PROTECTED]
Assumed fixed then.
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[2008-10-23 18:45:36] kulakov74 at yandex dot ru
The line "phpinfo() output this:" should be ignored.
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[2008-10-23 13:07:43] kulakov74 at yandex dot ru
I'm very sorry, I cannot go into the trouble of installing PHP, all I
could was check the bug with PHP 5.2.6 where it still was found.
phpinfo() output this:
This is not the latest release definitely.
The test script I used was this:
<?
ob_start();
phpinfo();
$Html=substr(ob_get_clean(), 0, 240000);
header("Content-Length: ".strlen($Html));
echo($Html);
?>
If the number 240000 is changed to 24000 the header is fine (changed
from 24000 to some 5K value), and if it not the header is not correct
(remains 240000).
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[2008-10-23 12:29:03] [EMAIL PROTECTED]
Please try using this CVS snapshot:
http://snaps.php.net/php5.2-latest.tar.gz
For Windows:
http://windows.php.net/snapshots/
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[2008-06-11 11:03:49] kulakov74 at yandex dot ru
Description:
------------
Many pointed out to the problem that the Content-Length header may have
incorrect value when using zlib.output_compression. This problem may
have been fixed but not completely. When the compressed data fits within
8K Content-Length is sent by zlib after compression and hence the header
(if present) is updated correctly, but when the compressed data is
larger no Content-Length is sent by zlib and hence the value is not
fixed. 8K is the default buffer size for zlib (mod_deflate) and is not
configurable. Anyway, whatever the size of the buffer is, I think the
initial Content-Length should be removed when zlib cannot determine the
size of the compressed data in advance.
The following bugs are related:
http://bugs.php.net/bug.php?id=28460
http://bugs.php.net/bug.php?id=22143
http://bugs.php.net/bug.php?id=24083
I guess many pages compress to more than 8K.
Reproduce code:
---------------
$FileToSend="filename.txt";
header("Content-Length: ".filesize($FileToSend));
readfile($FileToSend);
Expected result:
----------------
Content-Length header with the right value or removed.
Actual result:
--------------
Content-Length header with the same value I set. Note that the file
that is sent should COMPRESS to more than 8K in order for this to show.
It may be 25K and the problem will not show up.
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Edit this bug report at http://bugs.php.net/?id=45234&edit=1
