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Bug #17268 unset() hangs in infinite loop with Apache 1.3.24
Submitted: 2002-05-16 05:20 UTC Modified: 2002-05-27 16:57 UTC
From: stefan at fostam dot franken dot de Assigned:
Status: Not a bug Package: Scripting Engine problem
PHP Version: 4.2.1 OS: Linux 2.4
Private report: No CVE-ID: None
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 [2002-05-16 05:20 UTC] stefan at fostam dot franken dot de 
My PHP 4.2.1 with Apache 1.3.24 has the following problem:

unset() hangs in most cases in an infinite loop. It's independent from the type of the variable, or if the variable does exist at all.

I experienced this problem only with the Apache-compiled-in version; the same PHP version as standalone CGI with the same compile options and php.ini doesn't have this problem.

The apache process executing a script which came to an unset() call uses >90% of the CPU time until it gets stopped by the maximum execution time limit.

register_globals is set to "On".

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 [2002-05-16 05:34 UTC] derick@php.net 
Please provide a short reproducing script.

Derick
 [2002-05-16 06:14 UTC] stefan at fostam dot franken dot de 
No special script is required; even simple unset() calls fail:


<?php

$test = "test";

print "start";
unset($test);   // hangs and finally fails due to timeout in this line

?>
 [2002-05-17 09:04 UTC] mrobinso@php.net 
Can you provide more details on your setup please?

I'm not able to reproduce this on my 2.4 box running
Apache-1.3.24. In fact, I used unset in almost every
conceivable way without a problem.
 [2002-05-27 16:52 UTC] stefan at fostam dot franken dot de 
Sorry, the problem was related to ZendOptimizer 1.3.0.
It works fine by just replacing 1.3.0 by 1.3.1.
 [2002-05-27 16:57 UTC] derick@php.net 
Not a bug In PHP -> bugs
 
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