LessQL\Database::valueLists PHP Method

    protected function valueLists($rows, $columns)
    {
        $lists = array();
        foreach ($rows as $row) {
            $values = array();
            foreach ($columns as $column) {
                $values[] = $this->quote(@$row[$column]);
            }
            $lists[] = "( " . implode(", ", $values) . " )";
        }
        return $lists;
    }