Cartalyst\Tags\TaggableTrait::prepareTags PHP Метод

    public function prepareTags($tags)
    {
        if (is_null($tags)) {
            return [];
        }
        if (is_string($tags)) {
            $delimiter = preg_quote($this->getTagsDelimiter(), '#');
            $tags = array_map('trim', preg_split("#[{$delimiter}]#", $tags, null, PREG_SPLIT_NO_EMPTY));
        }
        return array_unique(array_filter($tags));
    }