Core/PayPalService.php
public function callbackResponse()
    {
        // cleanup
        $this->getCaller()->setParameter("VERSION", null);
        $this->getCaller()->setParameter("PWD", null);
        $this->getCaller()->setParameter("USER", null);
        $this->getCaller()->setParameter("SIGNATURE", null);

        return $this->getCaller()->getCallBackResponse("CallbackResponse");
    }
public function callbackResponse()
    {
        // cleanup
        $this->getCaller()->setParameter("VERSION", null);
        $this->getCaller()->setParameter("PWD", null);
        $this->getCaller()->setParameter("USER", null);
        $this->getCaller()->setParameter("SIGNATURE", null);

        return $this->getCaller()->getCallBackResponse("CallbackResponse");
    }
public function callbackResponse ( ) { // cleanup $ this -> getCaller ( ) -> setParameter ( "VERSION" , null ) ; $ this -> getCaller ( ) -> setParameter ( "PWD" , null ) ; $ this -> getCaller ( ) -> setParameter ( "USER" , null ) ; $ this -> getCaller ( ) -> setParameter ( "SIGNATURE" , null ) ; return $ this -> getCaller ( ) -> getCallBackResponse ( "CallbackResponse" ) ; }
Executes PayPal callback request

@return string
Executes PayPal callback request