Do you mean you want to have two files - One that contains that script and another file that calls the file with the script in it?
That's fairly simple to do:
Or another way of doing it is:
The difference is that if you 'include' a file that doesn't exist, the script should ignore it. If you 'require' it then the script will produce an error message.
It looks like you're trying to use a login system. I would recommend using 'require' instead of include because this will reduce the possibility of security problems.
I hope that helps!
