Description: ------------ see the code, the output is as it is supposed to be but i get the error from the client side. Test script: --------------- function register($params) { $user = $params->getParam(0); $password=$params->getParam(1); // This error checking syntax was added in Release 1.3.0 $val = new XML_RPC_Value("success", "string"); return new XML_RPC_Response($val); } /* * Establish the dispatch map and XML_RPC server instance. */ $server = new XML_RPC_Server( array("perform_register" => array("function" => "register")) ); Expected result: ---------------- <?xml version="1.0" encoding="UTF-8"?> <methodResponse> <params> <param> <value><string>success</string></value> </param> </params> </methodResponse> Actual result: -------------- <?xml version="1.0" encoding="UTF-8"?> <methodResponse> <params> <param> <value><string>success</string></value> </param> </params> </methodResponse> Error code: 2 Message: Invalid return payload: enable debugging to examine incoming payload

in XML/RPC/Server.php form the PEAR installation I disabled in the createServerPayload function the <?xml starting sentence. This fixed it....But nor kxmlrpc or the normal pear's parser accept this line there...so it is a bug? must it be fixed?

Are the server script and client script both saved in UTF-8 format? Is the payload coming back actually UTF-8? I have seen strange things happen when they are not. Perhaps try the setConvertPayloadEncoding() methods in XML_RPC's Server.php and RPC.php.