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Bug #34133 ob_start is "undefined" from time to time
Submitted: 2005-08-15 12:46 UTC Modified: 2005-08-23 01:00 UTC
Votes:2
Avg. Score:5.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:0 (0.0%)
Same OS:0 (0.0%)
From: holly at phren dot net Assigned:
Status: No Feedback Package: Output Control
PHP Version: 5.0.4 OS: Windows Server 2003
Private report: No CVE-ID: None
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 [2005-08-15 12:46 UTC] holly at phren dot net
Description:
------------
From time to time we get the error message "call to undefined function ob_start()" on of our customers' webserver.

This happens one to thrice a month and lasts for 1-2 minutes. I don't see any regularity which fits to any scheduled job, that is running on that machine.

ob_start() is the first function that is called and it is in the file, which was specified as "auto_prepend_file" in the php.ini, so every php-file on the webserver generates the error on every call in these 1-2 minutes.

So I'm not sure, if the same error would occur with another function at that place.

As this happens on a customers' production server, my options to test are very small, moreover the error was always reported, when it was already gone. All I have is the error-logfile.

I'm not sure, what information you could additionally need. So please tell me, if there's anything that you need to know.


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 [2005-08-15 12:50 UTC] tony2001@php.net
Not enough information was provided for us to be able
to handle this bug. Please re-read the instructions at
http://bugs.php.net/how-to-report.php

If you can provide more information, feel free to add it
to this bug and change the status back to "Open".

Thank you for your interest in PHP.



 [2005-08-15 12:58 UTC] holly at phren dot net
What kind of information do you need?

I can't reproduce this error. I googled a lot before posting this bug, and the only case which was similar to mine was this:
http://www.phpfreakz.nl/forum.php?forum=10&iid=490592&print=1

Unfortunatly it is dutch.

The beginning of the prepend file looks like this:

===
<?php

/* some comment */ 

ob_start();

// other code

?>
===

So please specify, what information you need and don't just close the bug.
 [2005-08-15 13:05 UTC] tony2001@php.net
Have you read the link I posted?

 [2005-08-15 14:20 UTC] holly at phren dot net
Sure. I read it before i made the first post.

But...

What I did?
I can't answer that question, because neither did I write that code nor did I see the error message in a browser. But there is a website, which uses an "auto_prepend_file" which I showed in the second post.

What I expected to happen?
I expect the Website to load correctly, with buffered output, so that the cookies and header()-calls work after output would have started.

What happend?
People surf onto that website and get the mentioned error-message occasionaly (as already described). This happens irregularly and only for about 1-2 minutes. After that phase everything works normally.

I can't try a CVS-snapshot, because it is a production server and because the error is not reproductable.

I'm sure, that I understand the error message.

I briefly provided code, which won't help you, because the problem is not reproducable for me. So it probably won't be for you.

I tried my best, writing English. I'm not a native speaker, but I think, people understand me. Otherwise feel free to ask about specific passages of my posts.

I use the current stable version of php5.

I only reported one problem in this bug report.

So, as you can see, there's not more information in this post, than there was in the previous ones. Not that I structured this post a little more that the other ones, you may be able to ask deeper questions to one of the paragraphs in this post.

I really think, the developers and volunteers here do a good job. Bugs are fixed quite fast and reports are responded to even faster. But I don't understand that you could not tell me a little more detailed, which information you need. I even asked for it in the very first post.
 [2005-08-15 14:25 UTC] derick@php.net
With this information, we still can't do anything though. If we can't reproduce it with a case, then how can you expect us to fix it? I've read the phpfreakz link that you posted but all it offers is silly comments on how not to use ob_Start() at all. There is obviously a bug, but it's very strange. The only way that can happen is that there is some memory corruption, but you can only find that with a debugger. If you can't offer that information, we can't help.
 [2005-08-23 01:00 UTC] php-bugs at lists dot php dot net
No feedback was provided for this bug for over a week, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".
 
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