pittore44 wrote:I am wondering if I should fix the security gap by changing the password from nothing to something?
It is no security gap, if you use XAMPP for what it is produced: A local development environment with no connection to the internet or big networks.
pittore44 wrote:If I do that, is there a way to make the CD Collections example still work? I am concerned about this, because I want to study the code for this example, because it is close to something I want to attempt.
Sure, there is always a way.
The sourcecode for that example is in your \xampp\htdocs\xampp\cds.php file.
The place where to put the password is in lines 4 and 64 where the mysql connection is established.