original_string: public function collectGarbage($maxLifetime = null)
      {
          $maxLifetime = $maxLifetime ?: ini_get('session.gc_maxlifetime');
          $this->sessionRegistryStorage->collectGarbage($maxLifetime);
      }
code: public function collectGarbage($maxLifetime = null)
      {
          $maxLifetime = $maxLifetime ?: ini_get('session.gc_maxlifetime');
          $this->sessionRegistryStorage->collectGarbage($maxLifetime);
      }
code_tokens: public function collectGarbage ( $ maxLifetime = null ) { $ maxLifetime = $ maxLifetime ? : ini_get ( 'session.gc_maxlifetime' ) ; $ this -> sessionRegistryStorage -> collectGarbage ( $ maxLifetime ) ; }
docstring: Removes sessions information which last used timestamp is older
  than the given lifetime.
  
  @param int $maxLifetime
docstring_tokens: Removes sessions information which last used timestamp is older than the given lifetime .