Confused About Objects and Classes

[eluser]Adolfo Reyes[/eluser]
Hello,

I'm fairly new to CodeIgniter and have a question. I'm a bit confused about Classes, Libraries and Objects.

Does CodeIgniter replace the normal PHP way of usings objects i.e. $var = new car() with libraries i.e. $this->load->library([some_library]); $this->some_library->some_function(); ?

If both are valid, is there a difference? If so, what are the differences and when I do use one over the other?


Thanks in advance