Is it possible to call a codeigniter library inside another library file?

Question

I want to call a function in a library inside another library which is written by me. Is it possible to do this in codeigniter? If so, can anyone explain how to do that?

Answer 1

You could do;

$CI =& get_instance();

$CI->load->library('your_library');
$CI->your_library->do_something();  

Answer 2

Typically, you reference the Codeigniter object (the current controller, technically) by using get_instance(). Often you'll want to assign it to a property of your library, like this:

class My_Library {

    private $CI;

    function __construct()
    {
        // Assign by reference with "&" so we don't create a copy
        $this->CI = &get_instance();
    }

    function do()
    {
        $var = $this->CI->my_other_library->get();
        // etc. 
    }
}

Just make sure the other library is loaded or in your config/autoload.php.