Some functions in Controller

hi, I have any controllers with some functions

PHP Code:

class Foo extends CI_Controller
{
   private function _bar() {
      // something
   }
} 


I need function _bar use in other controllers. Now I useing this function _bar repeat everytime in other controllers.
How not to write one and the same function all the time?

1. you can create application/core/MY_Controller.php 

and all you controllers will extend MY_Controller instead of CI_Controller

MY_Controller.php:

PHP Code:

class MY_Controller extends CI_Controller {

    public function __construct() {

        parent::__construct();
}

protected function yourfunction(){
 //...
}
} 


2. or you can use models
 put your function in a model

Depending on the function of the method, putting it in a Library might be the best solution. Personally, I'd do that anyway for most things, then you could still use it within MY_Controller if needed.

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Depending on the function of the method, putting it in a Library might be the best solution. Personally, I'd do that anyway for most things, then you could still use it within MY_Controller if needed.

I was find example with models...
Perfectly. I was create new Library.

PHP Code:

public function __construct() {
    parent::__construct();
} 


STOP. DOING. THIS.

PHP Code:

public function __construct() {
    parent::__construct();
} 


STOP. DOING. THIS.

In Documentation :

PHP Code:

class MY_Input extends CI_Input {

        public function __construct()
        {
                parent::__construct();
        }
} 


In Documentation :

PHP Code:

class MY_Input extends CI_Input {

        public function __construct()
        {
                parent::__construct();
        }
} 


And as the documentation says "If you need to use a constructor in your class make sure you extend the parent constructor:"

If you don't have work that must happen in a constructor then you don't need to define a constructor only for purpose of calling parent::__construct(). PHP will take care of that automatically.  

However, if you do define __construct() then you must explicitly call parent::__construct()