I'm using wordpress and I have a remote mysql server for some other data not stored on wordpress db.

Now I want to connect to that remote mysql server in a form of a php function but i don't know how or if it is possible. Basically this function serves as to check if `$orderid` exist on the remote mysql server. 

```
function check_orderid($orderid) {
// Connect to database
// Check if $orderid exist if yes return true.
}

```

The remote server does accept remote connections.

Also, Is it okay and will not affect wordpress db connection?