Helper\Option::getLike PHP Method

    public static function getLike($k)
    {
        $querySQL = "SELECT k, v FROM options WHERE k LIKE '%?%'";
        $statement = DB::getInstance()->prepare($querySQL);
        $statement->bindValue(1, $k, DB::PARAM_STR);
        $statement->execute();
        return $statement->fetchAll(DB::FETCH_CLASS, __CLASS__);
    }

 public function getCustomMailContentList()
 {
     $opts = Option::getLike('custom_mail_');
     Template::putContext('custom_mail_list', $opts);
 }