public function authenticate()
    {
        $result = call_user_func_array($this->_callback, $this->_params);
        if ( !($result instanceof Result)) {
            if ($result === true) {
                $result = new Result(Result::SUCCESS, $this->_identity);
            } else {
                $result = new Result(Result::FAILURE_CREDENTIAL_INVALID, $this->_identity);
            }
        }
        return $result;
    }
public function authenticate()
    {
        $result = call_user_func_array($this->_callback, $this->_params);
        if ( !($result instanceof Result)) {
            if ($result === true) {
                $result = new Result(Result::SUCCESS, $this->_identity);
            } else {
                $result = new Result(Result::FAILURE_CREDENTIAL_INVALID, $this->_identity);
            }
        }
        return $result;
    }
public function authenticate ( ) { $ result = call_user_func_array ( $ this -> _callback , $ this -> _params ) ; if ( ! ( $ result instanceof Result ) ) { if ( $ result === true ) { $ result = new Result ( Result :: SUCCESS , $ this -> _identity ) ; } else { $ result = new Result ( Result :: FAILURE_CREDENTIAL_INVALID , $ this -> _identity ) ; } } return $ result ; }
Perform the authenticate attempt

@return Result
Perform the authenticate attempt