FluidTYPO3\Vhs\ViewHelpers\Iterator\SortViewHelper::getSortFlags PHP Метод

    protected function getSortFlags()
    {
        $constants = $this->arrayFromArrayOrTraversableOrCSV($this->arguments['sortFlags']);
        $flags = 0;
        foreach ($constants as $constant) {
            if (false === in_array($constant, $this->allowedSortFlags)) {
                throw new Exception('The constant "' . $constant . '" you\'re trying to use as a sortFlag is not allowed. Allowed ' . 'constants are: ' . implode(', ', $this->allowedSortFlags) . '.', 1404220538);
            }
            $flags = $flags | constant(trim($constant));
        }
        return $flags;
    }