InsertQuery::filterLiterals PHP 메소드

    protected function filterLiterals($statements)
    {
        $f = function ($item) {
            return !$item instanceof FluentLiteral;
        };
        return array_map(function ($item) use($f) {
            if (is_array($item)) {
                return array_filter($item, $f);
            }
            return $item;
        }, array_filter($statements, $f));
    }