From: tero dot tasanen at gmail dot com
Operating system: Linux 64bit
PHP version: 5.3.14
Package: Output Control
Bug Type: Bug
Bug description:Strange behavior with global variables (objects) in ob_start()
output callback
Description:
------------
Global variables in output buffering seem to work in very strange way.
don't know
actually if this has anything to do with output buffering callback but see
the
test case attached to reproduce this.
And the strangest thing is that if you uncomment the last line the script
works
as expected!
After some searching I found two similar bug reports (#40604, #44840) and
the
comments indicate that this is expected behavior?! Not just that it seem
really
strange that all objects get destroyed before the output callback is
called, but
why does the use of the $test variable in the end of the script change this
behavior? This really does not make any sense!
Test script:
---------------
<?
function output($buffer) {
global $object;
return $buffer . $object->bar;
}
ob_start('output');
$object = new stdClass();
$object->bar = "bar";
echo "foo ";
// $test = $object;
Expected result:
----------------
foo bar
Actual result:
--------------
PHP Notice: Trying to get property of non-object in
/home/ttasanen/test.php on
line 5
PHP Stack trace:
PHP 1. output() /home/ttasanen/test.php:0
foo
--
Edit bug report at https://bugs.php.net/bug.php?id=62437&edit=1
--
Try a snapshot (PHP 5.4):
https://bugs.php.net/fix.php?id=62437&r=trysnapshot54
Try a snapshot (PHP 5.3):
https://bugs.php.net/fix.php?id=62437&r=trysnapshot53
Try a snapshot (trunk):
https://bugs.php.net/fix.php?id=62437&r=trysnapshottrunk
Fixed in SVN:
https://bugs.php.net/fix.php?id=62437&r=fixed
Fixed in SVN and need be documented:
https://bugs.php.net/fix.php?id=62437&r=needdocs
Fixed in release:
https://bugs.php.net/fix.php?id=62437&r=alreadyfixed
Need backtrace:
https://bugs.php.net/fix.php?id=62437&r=needtrace
Need Reproduce Script:
https://bugs.php.net/fix.php?id=62437&r=needscript
Try newer version:
https://bugs.php.net/fix.php?id=62437&r=oldversion
Not developer issue:
https://bugs.php.net/fix.php?id=62437&r=support
Expected behavior:
https://bugs.php.net/fix.php?id=62437&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=62437&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=62437&r=submittedtwice
register_globals:
https://bugs.php.net/fix.php?id=62437&r=globals
PHP 4 support discontinued:
https://bugs.php.net/fix.php?id=62437&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=62437&r=dst
IIS Stability:
https://bugs.php.net/fix.php?id=62437&r=isapi
Install GNU Sed:
https://bugs.php.net/fix.php?id=62437&r=gnused
Floating point limitations:
https://bugs.php.net/fix.php?id=62437&r=float
No Zend Extensions:
https://bugs.php.net/fix.php?id=62437&r=nozend
MySQL Configuration Error:
https://bugs.php.net/fix.php?id=62437&r=mysqlcfg
