original_string: public function error($return = false)
      {
          if (!empty($this->error)) {
              if ($return) {
                  return $this->error;
              }
              var_dump($this->error);
              return null;
          }
          return false;
      }
code: public function error($return = false)
      {
          if (!empty($this->error)) {
              if ($return) {
                  return $this->error;
              }
              var_dump($this->error);
              return null;
          }
          return false;
      }
code_tokens: public function error ( $ return = false ) { if ( ! empty ( $ this -> error ) ) { if ( $ return ) { return $ this -> error ; } var_dump ( $ this -> error ) ; return null ; } return false ; }
docstring: print or return last error
  @param bool $return
  @return bool|string
docstring_tokens: print or return last error