Bug #71730 [NEW]: compression fails

From: Date: Mon, 07 Mar 2016 15:06:45 +0000
Subject: Bug #71730 [NEW]: compression fails
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-199646@lists.php.net to get a copy of this message
From:             wowkise at gmai dot com
Operating system: ubuntu
PHP version:      Irrelevant
Package:          Output Control
Bug Type:         Bug
Bug description:compression fails

Description:
------------
if you take a look at the test script, the output_compression shouldn't
have been sent, as there is an output before it,

however, on Ubuntu 15.10, Using php5-fpm nginx, the headers get sent
anyway regardless if there is content before it or not, and that's
breaks browsers, and shows errors such as 

Chrome:
This webpage is not available - ERR_CONTENT_DECODING_FAILED

Firefox:
Content Encoding Error

The page you are trying to view cannot be shown because it uses an
invalid or unsupported form of compression.


Test script:
---------------
<?php

$obj = (object) [
    'foo' => 'bar'
];

var_dump( $obj );

if ( !headers_sent() )
{
    ini_set( 'zlib.output_compression', 1 );
}


Expected result:
----------------
the header shouldn't have been sent.

Actual result:
--------------
the header get sent which garbled the output, which in turn breaks the
output_compression, and causes the browsers to show error.

-- 
Edit bug report at https://bugs.php.net/bug.php?id=71730&edit=1
-- 
Try a snapshot (PHP 5.4):   https://bugs.php.net/fix.php?id=71730&r=trysnapshot54
Try a snapshot (PHP 5.5):   https://bugs.php.net/fix.php?id=71730&r=trysnapshot55
Try a snapshot (trunk):     https://bugs.php.net/fix.php?id=71730&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=71730&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=71730&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=71730&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=71730&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=71730&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=71730&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=71730&r=notwrong
Not enough info:            https://bugs.php.net/fix.php?id=71730&r=notenoughinfo
Submitted twice:            https://bugs.php.net/fix.php?id=71730&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=71730&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=71730&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=71730&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=71730&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=71730&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=71730&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=71730&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=71730&r=mysqlcfg



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