Details
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Type:
Bug
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Status:
Resolved
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Priority:
Major
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Resolution: Fixed
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Affects Version/s: 1.0.1
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Fix Version/s: 1.0.3
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Component/s: Zend_XmlRpc_Client
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Labels:None
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Fix Version Priority:Must Have
Description
Under PHP-5.2.4 Zend_XmlRpc client fails to parse responses that contain empty arrays, like this:
...<member><name>messages</name><value><array><data/></array></value></member>...
I've found the probable cause for it: behavour of empty() function on SimpleXMLElement objects is changed in PHP-5.2.4 (see http://www.php.net/ChangeLog-5.php) and the following script:
$xml = new SimpleXMLElement("<array><data/></array>");
echo "Element is empty: "; echo empty($xml->data);
prints false under PHP<5.2.4 and true under PHP-5.2.4.
Zend_XmlRpc checks for value of empty($value->data) in Zend/XmlRpc/Value.php line 330 and throws exception when $value->data is false (it is the case on PHP-5.2.4).
Proposed solution is to use isset($value->data) in that condition, since empty arrays are perfectly valid in XML-RPC responses.
Activity
I ran into this as well, so the sooner this is fixed, the better(er). 
Hi,
I am now running on 5.2.5 and as far as I can see no changes were made to simplexml from 5.2.4 and the problem still exists under ZF 1.0.2. I have just downloaded from FishEye the xmlrpc part of the framework and installed and tested and I now can handle empty arrays
So, initial testing is looking positive, will continue and report back again at the end of this week to confirm.
Many thanks!
So, initial testing is looking positive, will continue and report back again at the end of this week to confirm.
Many thanks! 
I am running ZF 1.0.2 under PHP 5.2.4 and can confirm this is an issue. I did try the above proposed solution but it didn't fix things for me.
When I get returned an empty array I get the Exception: Array ( [Error] => 651 [Message] => Failed to parse response ).
If I comment out lines 330 & 331 in Zend/XmlRpc/Value.php I get an empty Array() returned
If I change line 330 to use isset then I get the Exception: Array ( [Error] => 653 [Message] => Invalid XMLRPC value in response
Happy to test/try out any more suggestions
Many thanks!