public function saveDbConfig($db)
    {
        if ($this->checkDbConn($db["host"], $db["username"], $db["password"], $db["database"])) {
            $data = '<?php

class PayqrModuleDbConfig
{
    public static $username = "******"username"] . '";
    public static $password = "******"password"] . '";
    public static $database = "' . $db["database"] . '";
    public static $host = "' . $db["host"] . '";
    public static $prefix = "' . $db["prefix"] . '";
}';
            $file = PAYQR_ROOT . "module/orm/PayqrModuleDbConfig.php";
            file_put_contents($file, $data);
            PayqrModuleDbConfig::setConfig($db);
            $this->createTables();
            return true;
        } else {
            return false;
        }
    }