require_once("site_constant.php");
require_once("lib/mysql.php");
require_once("lib/function.php");
$DBObject = new db_sql();

$link = $DBObject->db_connect(DB_SERVER,DB_SERVER_USERNAME,DB_SERVER_PASSWORD, DB_DATABASE) or die('DB not connect');

define('DB_SERVER','xxxx');
define('DB_SERVER_USERNAME','xxxxx');
define('DB_SERVER_PASSWORD','xxxxx');
define('DB_DATABASE','xxxxxx');
define('SITE_URL', 'xxxxxxx');

function db_connect($server = DB_SERVER, $username = DB_SERVER_USERNAME, $password = DB_SERVER_PASSWORD, $database = DB_DATABASE, $link = 'db_link')
{
    global $$link;
    $$link =mysql_connect($server, $username, $password);
    if($$link)
    {
        $$link=mysql_select_db($database);
        if(!$$link)
        {
            $msg="Can't connect from Database";
            $this->db_error($msg,mysql_errno(),mysql_error());
        }
    }
    else
    {
        $msg="Can't connect from MYSQL";
        $this->db_error($msg,mysql_errno(),mysql_error());
    }
    return $$link;
}