original_string: public function gc($maxlifetime)
      {
          $this->pdo->queryWithParam(
              'DELETE FROM session WHERE last_update < DATE_SUB(NOW(), INTERVAL :maxlifetime SECOND)',
              [[':maxlifetime', $maxlifetime, \PDO::PARAM_INT]]
          );
  
          return $this->pdo->getLastOperationStatus();
      }
code: public function gc($maxlifetime)
      {
          $this->pdo->queryWithParam(
              'DELETE FROM session WHERE last_update < DATE_SUB(NOW(), INTERVAL :maxlifetime SECOND)',
              [[':maxlifetime', $maxlifetime, \PDO::PARAM_INT]]
          );
  
          return $this->pdo->getLastOperationStatus();
      }
code_tokens: public function gc ( $ maxlifetime ) { $ this -> pdo -> queryWithParam ( 'DELETE FROM session WHERE last_update < DATE_SUB(NOW(), INTERVAL :maxlifetime SECOND)' , [ [ ':maxlifetime' , $ maxlifetime , \ PDO :: PARAM_INT ] ] ) ; return $ this -> pdo -> getLastOperationStatus ( ) ; }
docstring: Delete old sessions from storage.
  
  http://php.net/manual/en/sessionhandler.gc.php.
  
  @param int $maxlifetime
  
  @return bool
docstring_tokens: Delete old sessions from storage .