Sessions

[eluser]elmne[/eluser]
Is there a way or class that can be used in Codeigniter which supports PHP native sessions as well as database storage?

There seems to be two problems with using cookies for sessions

- If the browser of the user has cookies disabled.
- The cookie can be modified, which requires validation using codeigniter session database.

Can someone point out weaknesses of PHP native sessions ?

Can PHP native sessions be spoofed too? and if so, can they be encrypted and also validated against the database?