FluentDOM\Constraints::hasOption PHP Метод

    public static function hasOption($options, $option)
    {
        return ($options & $option) === $option;
    }

 /**
  * @param array $nodes
  * @param callable $filter
  * @param callable $stopAt
  * @param int $options
  * @return array
  */
 private function filterNodes(array $nodes, callable $filter = NULL, callable $stopAt = NULL, $options = 0)
 {
     $result = array();
     foreach ($nodes as $index => $node) {
         list($isFilter, $isStopAt) = $this->getNodeStatus($node, $index, $filter, $stopAt);
         if ($isStopAt) {
             if ($isFilter && Constraints::hasOption($options, self::INCLUDE_STOP)) {
                 $result[] = $node;
             }
             return $result;
         } elseif ($isFilter) {
             $result[] = $node;
         }
     }
     return $result;
 }