From: richard dot quadling at bandvulc dot co dot uk
Operating system: Windows XP SP2
PHP version: 5.0.4
PHP Bug Type: Zlib Related
Bug description: ZLIB and output from __destruct() invalidates entire output
Description:
------------
I have classes which do a var_dump as part of the __destruct() method if
the code is running from a the development domain (all the sites are on
the same server, live and development).
I recently turned on the zlib.output_compression in my php-isapi.ini
file.
This has been great for the live domains, but the development domains
generate no output.
If I toggle this setting and restart the webserver service (I am using
Sambar Server), then I get all the output I ask for.
The "Reproduce code" below proves my point.
It seems that the output stream is closed BEFORE the destruct() methods
are called, OR the destruct() methods generate output that bypassing the
zlib compression in some way.
I have also included the network trace logs relevant to the requests from
Sambar Server.
Sambar is not set to compress its output.
Reproduce code:
---------------
<?php
class MakeCommentWhenBeingDestroyed
{
private $bShowDestructionNotice = False;
public function __construct($bShowDestructionNotice = False)
{
$this->bShowDestructionNotice = $bShowDestructionNotice;
}
public function __destruct()
{
if ($this->bShowDestructionNotice === True)
{
echo "We are being destroyed!";
}
}
}
$objMCWBD = new MakeCommentWhenBeingDestroyed(True);
echo 'Object created as <pre>' . var_export($objMCWBD, True) . '</pre>' .
date('r');
?>
Expected result:
----------------
Object created as
class MakeCommentWhenBeingDestroyed {
private $bShowDestructionNotice = true;
}
Mon, 08 Aug 2005 14:50:29 +0100We are being destroyed!
Valid tracelog from Sambar Server.
[2005-08-08 14:50:29] TCP ACCEPT [80] -> 127.0.0.1:6588
[2005-08-08 14:50:29] TCP READWAIT [80] -> 127.0.0.1:6588
[2005-08-08 14:50:29] TCP READ [80] -> 127.0.0.1:6588 [330 bytes]
000000: 47 45 54 20 2F 54 65 73 : 74 25 32 30 7A 6C 69 62 GET
/Test%20zlib
000010: 25 32 30 64 65 73 74 72 : 6F 79 2E 70 68 70 20 48
%20destroy.php H
000020: 54 54 50 2F 31 2E 31 0D : 0A 41 63 63 65 70 74 3A
TTP/1.1..Accept:
000030: 20 2A 2F 2A 0D 0A 52 65 : 66 65 72 65 72 3A 20 68
*/*..Referer: h
000040: 74 74 70 3A 2F 2F 6C 6F : 63 61 6C 2E 71 75 69 63
ttp://local.quic
000050: 6B 73 63 72 69 70 74 73 : 2F 0D 0A 41 63 63 65 70
kscripts/..Accep
000060: 74 2D 4C 61 6E 67 75 61 : 67 65 3A 20 65 6E 2D 67 t-Language:
en-g
000070: 62 0D 0A 41 63 63 65 70 : 74 2D 45 6E 63 6F 64 69
b..Accept-Encodi
000080: 6E 67 3A 20 67 7A 69 70 : 2C 20 64 65 66 6C 61 74 ng: gzip,
deflat
000090: 65 0D 0A 55 73 65 72 2D : 41 67 65 6E 74 3A 20 4D
e..User-Agent: M
0000A0: 6F 7A 69 6C 6C 61 2F 34 : 2E 30 20 28 63 6F 6D 70 ozilla/4.0
(comp
0000B0: 61 74 69 62 6C 65 3B 20 : 4D 53 49 45 20 36 2E 30 atible; MSIE
6.0
0000C0: 3B 20 57 69 6E 64 6F 77 : 73 20 4E 54 20 35 2E 31 ; Windows NT
5.1
0000D0: 3B 20 53 56 31 3B 20 2E : 4E 45 54 20 43 4C 52 20 ; SV1; .NET
CLR
0000E0: 31 2E 31 2E 34 33 32 32 : 29 0D 0A 48 6F 73 74 3A
1.1.4322)..Host:
0000F0: 20 6C 6F 63 61 6C 2E 71 : 75 69 63 6B 73 63 72 69
local.quickscri
000100: 70 74 73 0D 0A 43 6F 6E : 6E 65 63 74 69 6F 6E 3A
pts..Connection:
000110: 20 4B 65 65 70 2D 41 6C : 69 76 65 0D 0A 43 61 63
Keep-Alive..Cac
000120: 68 65 2D 43 6F 6E 74 72 : 6F 6C 3A 20 6E 6F 2D 63 he-Control:
no-c
000130: 61 63 68 65 0D 0A 43 6F : 6F 6B 69 65 3A 20 52 43 ache..Cookie:
RC
000140: 73 6C 62 3D 31 39 0D 0A : 0D 0A
slb=19..........
[2005-08-08 14:50:29] TCP WRITE [80] -> 127.0.0.1:6588 [122 bytes]
000000: 48 54 54 50 2F 31 2E 31 : 20 32 30 30 20 4F 4B 0D HTTP/1.1 200
OK.
000010: 0A 44 61 74 65 3A 20 4D : 6F 6E 2C 20 30 38 20 41 .Date: Mon,
08 A
000020: 75 67 20 32 30 30 35 20 : 31 33 3A 35 30 3A 32 39 ug 2005
13:50:29
000030: 20 47 4D 54 0D 0A 53 65 : 72 76 65 72 3A 20 53 41 GMT..Server:
SA
000040: 4D 42 41 52 0D 0A 43 6F : 6E 74 65 6E 74 2D 74 79
MBAR..Content-ty
000050: 70 65 3A 20 74 65 78 74 : 2F 68 74 6D 6C 0D 0A 58 pe:
text/html..X
000060: 2D 50 6F 77 65 72 65 64 : 2D 42 79 3A 20 50 48 50 -Powered-By:
PHP
000070: 2F 35 2E 30 2E 34 0D 0A : 0D 0A
/5.0.4..........
[2005-08-08 14:50:29] TCP WRITE [80] -> 127.0.0.1:6588 [141 bytes]
000000: 4F 62 6A 65 63 74 20 63 : 72 65 61 74 65 64 20 61 Object
created a
000010: 73 20 3C 70 72 65 3E 63 : 6C 61 73 73 20 4D 61 6B s <pre>class
Mak
000020: 65 43 6F 6D 6D 65 6E 74 : 57 68 65 6E 42 65 69 6E
eCommentWhenBein
000030: 67 44 65 73 74 72 6F 79 : 65 64 20 7B 0A 20 20 70 gDestroyed {.
p
000040: 72 69 76 61 74 65 20 24 : 62 53 68 6F 77 44 65 73 rivate
$bShowDes
000050: 74 72 75 63 74 69 6F 6E : 4E 6F 74 69 63 65 20 3D
tructionNotice =
000060: 20 74 72 75 65 3B 0A 7D : 3C 2F 70 72 65 3E 4D 6F
true;.}</pre>Mo
000070: 6E 2C 20 30 38 20 41 75 : 67 20 32 30 30 35 20 31 n, 08 Aug
2005 1
000080: 34 3A 35 30 3A 32 39 20 : 2B 30 31 30 30 4:50:29
+0100...
[2005-08-08 14:50:29] TCP WRITE [80] -> 127.0.0.1:6588 [23 bytes]
000000: 57 65 20 61 72 65 20 62 : 65 69 6E 67 20 64 65 73 We are being
des
000010: 74 72 6F 79 65 64 21 :
troyed!.........
[2005-08-08 14:50:29] CLOSE [80] -> 127.0.0.1:6588
Actual result:
--------------
(Via a ViewSource)
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html;
charset=windows-1252"></HEAD>
<BODY></BODY></HTML>
(Invalid trace log from Sambar Server)
[2005-08-08 14:48:57] TCP ACCEPT [80] -> 127.0.0.1:6555
[2005-08-08 14:48:57] TCP READWAIT [80] -> 127.0.0.1:6555
[2005-08-08 14:48:57] TCP READ [80] -> 127.0.0.1:6555 [330 bytes]
000000: 47 45 54 20 2F 54 65 73 : 74 25 32 30 7A 6C 69 62 GET
/Test%20zlib
000010: 25 32 30 64 65 73 74 72 : 6F 79 2E 70 68 70 20 48
%20destroy.php H
000020: 54 54 50 2F 31 2E 31 0D : 0A 41 63 63 65 70 74 3A
TTP/1.1..Accept:
000030: 20 2A 2F 2A 0D 0A 52 65 : 66 65 72 65 72 3A 20 68
*/*..Referer: h
000040: 74 74 70 3A 2F 2F 6C 6F : 63 61 6C 2E 71 75 69 63
ttp://local.quic
000050: 6B 73 63 72 69 70 74 73 : 2F 0D 0A 41 63 63 65 70
kscripts/..Accep
000060: 74 2D 4C 61 6E 67 75 61 : 67 65 3A 20 65 6E 2D 67 t-Language:
en-g
000070: 62 0D 0A 41 63 63 65 70 : 74 2D 45 6E 63 6F 64 69
b..Accept-Encodi
000080: 6E 67 3A 20 67 7A 69 70 : 2C 20 64 65 66 6C 61 74 ng: gzip,
deflat
000090: 65 0D 0A 55 73 65 72 2D : 41 67 65 6E 74 3A 20 4D
e..User-Agent: M
0000A0: 6F 7A 69 6C 6C 61 2F 34 : 2E 30 20 28 63 6F 6D 70 ozilla/4.0
(comp
0000B0: 61 74 69 62 6C 65 3B 20 : 4D 53 49 45 20 36 2E 30 atible; MSIE
6.0
0000C0: 3B 20 57 69 6E 64 6F 77 : 73 20 4E 54 20 35 2E 31 ; Windows NT
5.1
0000D0: 3B 20 53 56 31 3B 20 2E : 4E 45 54 20 43 4C 52 20 ; SV1; .NET
CLR
0000E0: 31 2E 31 2E 34 33 32 32 : 29 0D 0A 48 6F 73 74 3A
1.1.4322)..Host:
0000F0: 20 6C 6F 63 61 6C 2E 71 : 75 69 63 6B 73 63 72 69
local.quickscri
000100: 70 74 73 0D 0A 43 6F 6E : 6E 65 63 74 69 6F 6E 3A
pts..Connection:
000110: 20 4B 65 65 70 2D 41 6C : 69 76 65 0D 0A 43 61 63
Keep-Alive..Cac
000120: 68 65 2D 43 6F 6E 74 72 : 6F 6C 3A 20 6E 6F 2D 63 he-Control:
no-c
000130: 61 63 68 65 0D 0A 43 6F : 6F 6B 69 65 3A 20 52 43 ache..Cookie:
RC
000140: 73 6C 62 3D 31 39 0D 0A : 0D 0A
slb=19..........
[2005-08-08 14:48:57] TCP WRITE [80] -> 127.0.0.1:6555 [169 bytes]
000000: 48 54 54 50 2F 31 2E 31 : 20 32 30 30 20 4F 4B 0D HTTP/1.1 200
OK.
000010: 0A 44 61 74 65 3A 20 4D : 6F 6E 2C 20 30 38 20 41 .Date: Mon,
08 A
000020: 75 67 20 32 30 30 35 20 : 31 33 3A 34 38 3A 35 37 ug 2005
13:48:57
000030: 20 47 4D 54 0D 0A 53 65 : 72 76 65 72 3A 20 53 41 GMT..Server:
SA
000040: 4D 42 41 52 0D 0A 43 6F : 6E 74 65 6E 74 2D 74 79
MBAR..Content-ty
000050: 70 65 3A 20 74 65 78 74 : 2F 68 74 6D 6C 0D 0A 58 pe:
text/html..X
000060: 2D 50 6F 77 65 72 65 64 : 2D 42 79 3A 20 50 48 50 -Powered-By:
PHP
000070: 2F 35 2E 30 2E 34 0D 0A : 43 6F 6E 74 65 6E 74 2D
/5.0.4..Content-
000080: 45 6E 63 6F 64 69 6E 67 : 3A 20 67 7A 69 70 0D 0A Encoding:
gzip..
000090: 56 61 72 79 3A 20 41 63 : 63 65 70 74 2D 45 6E 63 Vary:
Accept-Enc
0000A0: 6F 64 69 6E 67 0D 0A 0D : 0A
oding...........
[2005-08-08 14:48:57] TCP WRITE [80] -> 127.0.0.1:6555 [155 bytes]
000000: 1F 8B 08 00 00 00 00 00 : 00 03 1C 8C 3D 0F 82 30
..........=.0
000010: 14 45 77 7E C5 1D DC 34 : F1 61 20 12 04 13 3F 56 .Ew~Å.Ü4ña
...?V
000020: 74 70 70 2E F5 05 AA D2 : 47 DA A2 31 C6 FF 2E BA
tpp.õ.ªÒGÚ¢1Æÿ.º
000030: DE 73 CE 3D D6 57 D6 01 : DA B1 0A 7C 81 F2 28 7A
ÞsÎ=ÖWÖ.Ú±.|.ò(z
000040: C7 6B 7D 57 DE A3 52 37 : DE 49 D7 B1 0D E7 96 ED
Çk}WÞ£R7ÞI×±.çí
000050: 96 8D 6D F6 EC 83 93 D7 : E8 BE 23 A0 77 E6 31 86 .möì×è¾#
wæ1
000060: 98 D4 A7 56 9E 7F 36 E8 : 60 C4 1E 24 18 CD 28 31
.Ô§V.6è`Ä.$.Í(1
000070: 0E BC 8A 3E C5 FC 77 5B : 89 9D 81 32 6C 86 06 0B
.¼>Åüw[..2l..
000080: A2 14 71 92 27 59 9E 2E : 31 A5 98 E8 0B 00 00 FF
¢.q'Y.1¥.è...ÿ
000090: FF 03 00 42 F5 1E 08 8D : 00 00 00
ÿ..Bõ...........
[2005-08-08 14:48:57] TCP WRITE [80] -> 127.0.0.1:6555 [23 bytes]
000000: 57 65 20 61 72 65 20 62 : 65 69 6E 67 20 64 65 73 We are being
des
000010: 74 72 6F 79 65 64 21 :
troyed!.........
[2005-08-08 14:48:57] CLOSE [80] -> 127.0.0.1:6555
--
Edit bug report at http://bugs.php.net/?id=34038&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=34038&r=trysnapshot4
Try a CVS snapshot (php5.0):
http://bugs.php.net/fix.php?id=34038&r=trysnapshot50
Try a CVS snapshot (php5.1):
http://bugs.php.net/fix.php?id=34038&r=trysnapshot51
Fixed in CVS: http://bugs.php.net/fix.php?id=34038&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=34038&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=34038&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=34038&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=34038&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=34038&r=support
Expected behavior: http://bugs.php.net/fix.php?id=34038&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=34038&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=34038&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=34038&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=34038&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=34038&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=34038&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=34038&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=34038&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=34038&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=34038&r=mysqlcfg
