how to create login using code igniter

[eluser]PhilTem[/eluser]
[quote author="xerobytez" date="1348331744"]Before trying to use a PHP framework like codeigniter you should try and learn the language its built on which is PHP, it will be nearly impossible to use codeigniter effectively without knowing basic PHP.[/quote]

Nothing more to add.
And sorry if this was not the answer you were looking for, but I is mandatory to understand the basics of PHP as well as having knowledge in procedural PHP before doing OOP-PHP and then moving to a framework like CI.