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@@ -661,6 +661,7 @@ class nusoap_server extends nusoap_base {
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$this->debug('got a(n) '.gettype($this->methodreturn).' from method');
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$this->debug('serializing return value');
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if($this->wsdl){
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+ $opParams = "";
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if (sizeof($this->opData['output']['parts']) > 1) {
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$this->debug('more than one output part, so use the method return unchanged');
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$opParams = $this->methodreturn;
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