Entering only from route address

[eluser]PhilTem[/eluser]
If you want to turn methods into private methods DO NOT add a private declaration for the method

Code:

private function hidden() {}

will not work because the method can't be called form the CI super object.
However

Code:

public function _hidden() {}

will work and this method will not be accessible via http://example.com/controller/_hidden.

You need to distinguish between private PHP methods and "private CI methods"