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Bug #49030 fails to resolve cyclic references
Submitted: 2009-07-23 11:03 UTC Modified: 2009-07-23 22:55 UTC
From: markus at malkusch dot de Assigned:
Status: Not a bug Package: SOAP related
PHP Version: 5.1.6 OS: linux
Private report: No CVE-ID: None
 [2009-07-23 11:03 UTC] markus at malkusch dot de
Description:
------------
I must say I'm using php 5.1.6. I'm not able to upgrade the version in this environment. As I didn't find any comments on my problem, I assume it's still in PHP.

I have some segfaults with a certain SOAP-answer. I decided to use PEAR-Soap instead. It doesn't work with pear neither. It turns out, that this special answer uses cyclic object references and PEAR::Soap cannot handle that. I assume PHP's Soap has the same problems.

Reproduce code:
---------------
This is only an excerpt of the SOAP-Answer:

    <env:Body>
        <ns0:Paragraph id="ID19" xsi:type="ns0:Paragraph">
            <sub href="#ID21" />
        </ns0:Paragraph>
        <ns0:Paragraph id="ID21" xsi:type="ns0:Paragraph">
            <parent href="#ID19" />
        </ns0:Paragraph>
    </env:Body>

Expected result:
----------------
I expect an object graph with correct cyclic references.

Actual result:
--------------
Apache segfaults now. I think this is due to an infinit loop like PEAR does as well.

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 [2009-07-23 22:55 UTC] jani@php.net
Thank you for taking the time to report a problem with PHP.
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