Thanks much for the replies. This could explain why I've been getting so many http Internal Server Errors that I could only fix after patiently trying to rewrite each line of object code in various ways. And then if it finally worked, having no idea why. Yes, I've been trying to learn CI using V3.1.2. The Help Docs at the top of the page clearly say "CodeIgniter User Guide Version 2.2.6".
If anyone reading this is working on CI documentation, the current Help Docs for V3xx don't have any version number at the top of the Help Doc pages including the first page of "General Topcs". I think it would be very useful to have that information at the top of each help topic first page (as with V2). Perhaps even with a caveat to the effect that CI syntax and other code-writing rules have important differences between CI versions and one should be sure to use the correct docs.
