I'm gonna start a new project, a big one and I'm gonna use CodeIgniter and I'm really worried about using design patters but I have no idea of witch one to use and what is best with CodeIgniter.
[eluser]Hire Codeigniter Developer[/eluser]
You can use any kind of design best is DIV tag html pages and Css 3 ..thats best else no worry about design pattern...you must know Dive and css3 perfectly so you can customize as per requirement.
[eluser]osci[/eluser]
I think by design patterns Gerep means programming design patterns.
I'm not quite literal with design patterns but I believe you are limited only php's limitations to oop (like multi-inherittance - although I think I recall reading in a post in these forums about php 5.4 implementing it).
[eluser]Gonzo2[/eluser]
I guess its Singleton as what InsiteFX has mentioned above, cause CI ensure a class has only one instance and provide a global point of access to it.
For codes portability you can look into HMVC extension.