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Bug #50285 xmlrpc does not preserve keys in encoded indexed arrays
Submitted: 2009-11-24 14:55 UTC Modified: 2009-11-25 02:03 UTC
From: tony at marston-home dot demon dot co dot uk Assigned: felipe
Status: Closed Package: XMLRPC-EPI related
PHP Version: 5.*, 6 OS: *
Private report: No CVE-ID:
 [2009-11-24 14:55 UTC] tony at marston-home dot demon dot co dot uk
When the method called in xmlrpc_server_call_method() returns an array where the keys are numeric but non-sequential it does not include the keys in the xml response, so when that response is decoded by the client all the keys are resequenced from zero. This means that all the original keys are lost.

Reproduce code:
function indexedArray ( $func, $params) {
    return array(1=>'One', 3=>'Three', 5=>'Five');
} // indexedArray
$server = xmlrpc_server_create();
$result = xmlrpc_server_register_method($server, 'indexedArray', 'indexedArray');
<?xml version="1.0" encoding="UTF-8"?>
<params />
$response = xmlrpc_server_call_method($server, $HTTP_RAW_POST_DATA, null);
$array = xmlrpc_decode($response);

Expected result:
The contents of $array should read (1=>'One', 3=>'Three', 5=>'Five'). This is because the xml document does not contain any <name> elements for each <member>.

Actual result:
The contents of $array is (0=>'One', 1=>'Three', 2=>'Five')


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 [2009-11-24 20:16 UTC]
A little bit simpler test which shows the same issue:


$a = array(1 => 'one', 3 => 'three', 5 => 'five', 'a'=> 'foo');
var_dump($a, xmlrpc_encode($a));

/* xmlrpc_decode() does work when passed proper data: */
$r = '<?xml version="1.0" encoding="utf-8"?>



 [2009-11-25 02:03 UTC]
Automatic comment from SVN on behalf of felipe
Log: - Fixed bug #50285 (xmlrpc does not preserve keys in encoded indexed arrays)
 [2009-11-25 02:03 UTC]
This bug has been fixed in SVN.

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