From: xuefer at gmail dot com
Operating system: gentoo linux
PHP version: 5CVS-2007-07-28 (CVS)
PHP Bug Type: Scripting Engine problem
Bug description: suggest a fix for global object got destructed in output
buffer handler
Description:
------------
it seems that the implicit ob_end_flush() is called after object
destructions.
uncomment any ONE of the comments gives "okay". but this is not the
official trick that supported by php.
the php bug system suggest me this bug is by design in #39546 #39629 etc.
there's many register_xxx arround my php files, which install data into a
global object, and the output buffer handler will inject the data into the
output in the correct place. if this bug is not fixed, the only way i can
do is to rewrite the object into array/functions
anyway, i have a suggested fix to change the work flow a bit:
1. flush and pop all OBs but leave 1 top OB on shutdown
2. destruct objects
3. flush the last OB if there's any
no matter if this bug is gonna be fixed, there shall be a page that give
explanation and work arround to this issue.
Reproduce code:
---------------
<?php
class Obj
{
}
function callback($content)
{
return isset($GLOBALS['a']) ? $content : 'oops';
}
ob_start('callback');
$a = new Obj();
//$b = $a;
echo 'okay';
//ob_end_flush();
?>
Expected result:
----------------
okay
Actual result:
--------------
oops
--
Edit bug report at http://bugs.php.net/?id=42132&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=42132&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=42132&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=42132&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=42132&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=42132&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=42132&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=42132&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=42132&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=42132&r=support
Expected behavior: http://bugs.php.net/fix.php?id=42132&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=42132&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=42132&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=42132&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=42132&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=42132&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=42132&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=42132&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=42132&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=42132&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=42132&r=mysqlcfg
