From: php at kloopy dot com
Operating system: Win32 and Linux
PHP version: 4.4.1
PHP Bug Type: Output Control
Bug description: Calling ob_flush after creating an ob callback causes
"Segmentation fault"
Description:
------------
When setting an output buffer that returns an empty string (I do have a
good reason for doing this), later calls to ob_flush() cause PHP to seg
fault.
Tested on PHP-4.1.1 on linux (CLI and Apache2 module) with same error on
both.
Also tested on PHP-5.0.5 on Win32 (CLI and Apache2 module) with same error
on both.
Reproduce code:
---------------
<?php
function nooutput($text) { return ""; }
print "Before\n";
ob_start("nooutput");
print "Middle\n";
ob_flush();
ob_end_flush();
print "After\n";
?>
Expected result:
----------------
Before
After
Actual result:
--------------
Before
Segmentation fault
--
Edit bug report at http://bugs.php.net/?id=35156&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=35156&r=trysnapshot4
Try a CVS snapshot (php5.0):
http://bugs.php.net/fix.php?id=35156&r=trysnapshot50
Try a CVS snapshot (php5.1):
http://bugs.php.net/fix.php?id=35156&r=trysnapshot51
Fixed in CVS: http://bugs.php.net/fix.php?id=35156&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=35156&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=35156&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=35156&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=35156&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=35156&r=support
Expected behavior: http://bugs.php.net/fix.php?id=35156&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=35156&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=35156&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=35156&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=35156&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=35156&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=35156&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=35156&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=35156&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=35156&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=35156&r=mysqlcfg
