PHP Script Sürüm Yükseltme

<?php
function paywant_db($db)
{
global $SQL_SERVER;
global $SQL_USER;
global $SQL_PASS;
global $SQL_ACCOUNT;
global $SQL_SPECIAL;
switch($db)
{
case "account":
//hata alınan satır $connect = mssql_connect($SQL_SERVER,$SQL_USER,$SQL_PASS) or die( "Can't connect to server");
mssql_select_db($SQL_ACCOUNT,$connect) or die("Can't connect to database");
break;
case "special":
if($SQL_SPECIAL != "")
{
$connect = mssql_connect($SQL_SERVER,$SQL_USER,$SQL_PASS) or die( "Can't connect to server");
mssql_select_db($SQL_SPECIAL,$connect) or die("Can't connect to database");
}
break;
default:
return false;
break;
}

}