Kohana is originally a PHP-5 only fork of CodeIgniter, but it has developed into much more. Now all code has been rewritten, so only the framework in concept is based on CodeIgniter. It has nice ORM, AUTH and Cache modules.

Dynamic ajax based shoutbox with jQuery from scratch. It will be very interesting to know how to use the ajax function of jQuery and how it can be used to insert and recover data from a MySQL database via PHP in a way asynchronous.

Simon Stenhouse "Datamapper" is one of my favorite CI Library. DataMapper is an Object Relational Mapper written in PHP for CodeIgniter. It is designed to map your Database tables into easy to work with objects, fully aware of the relationships between each other.

I posted how to implement Zend Framework here. However I had a problem with Window’s path when I was trying it.

I have found a couple of things about paths in Windows when I am using Codeigniter....

There are quite few posts how to use Zend framework in Codeigniter.

1. Beyond Coding
2. Freakauth
3. Phil’s post

However none of them worked on my XAMPP. I thought there might be some who are struggling to use Zend frame work on Windows. Here is how I did.
...

A very nice remap function for your codeigniter application. Check it out.

...
Goals

1. Add all the CRUD in a site calendar.
2. Add links to individula calendar
3. Clicking a pop up which has details take you to a edit page

I am going to write how to create an ajax message/todo system with Codeigniter. All the following features will be done with Ajax. And the message will be stored in a database.

1. There will be Todo list and Completed list loaded with jquery.
2. Adding a todo list without page reload.
3. Clicking a link in a todo list will change to a completed list.
...

Whenever you use CakePHP’s find('first') or find('all') methods, it will return the data you have asked for. However, you may find that they return more data than you need. Check it out how to limit data transfer in CakePHP.