Where to put this code in codeigniter - codeigniter

Question

I put the following code in every controller under public function index(). As of now I have 3 controllers and it will increase until my website is finish. I need the code below in all pages (i.e. views).
$type = $this->input->post('type');
$checkin = $this->input->post('sd');
$checkout = $this->input->post('ed');
My question is where can I put the code above in just one location so it will be available on all pages (i.e. views) and avoid putting it in every controller.

Answer 1

If you have for example a main view file, and you need that code on every page, then I suggest you put in the main view file (view/index.php)
I think, with #KadekM answer, you should call a function every time in every controller, because you sad, you want this code in every controllers every function.

Answer 2

You can create your own controller (for example MY_cotroller) extending CI_controller, put shared code there, and then your three controllers should extend MY_controller.
You can then call it wherever you need it (or even put it to constructor if you need it everywhere).
Here's the sample I promised (assuming you have default codeigniter settings)
in core folder create file named MY_Controller.php
class MY_Controller extends CI_Controller{
protected $type;
protected $checkin;
protected $checkout;
protected $bar;
public function __construct()
{
parent::__construct();
$this->i_am_called_all_the_time();
}
private function i_am_called_all_the_time() {
$this->type = $this->input->post('type');
$this->checkin = $this->input->post('sd');
$this->checkout = $this->input->post('ed');
}
protected function only_for_some_controllers() {
$this->bar = $this->input->post('bar');
}
protected function i_am_shared_function_between_controllers() {
echo "Dont worry, be happy!";
}
}
then create your controller in controllers folder
class HelloWorld extends MY_Controller {
public function __construct() {
parent::__construct();
}
public function testMyStuff() {
// you can access parent's stuff (but only the one that was set), for example:
echo $this->type;
//echo $this->bar; // this will be empty, because we didn't set $this->bar
}
public function testSharedFunction() {
echo "some complex stuff";
$this->i_am_shared_function_between_controllers();
echo "some complex stuff";
}
}
then for example, another controller:
class HappyGuy extends MY_Controller {
public function __construct() {
parent::__construct();
$this->only_for_some_controllers(); // reads bar for every action
}
public function testMyStuff() {
// you can access parent's stuff here, for example:
echo $this->checkin;
echo $this->checkout;
echo $this->bar; // bar is also available here
}
public function anotherComplexFunction() {
echo "what is bar ?".$this->bar; // and here
echo "also shared stuff works here";
$this->i_am_shared_function_between_controllers();
}
}
Those are just examples, of course you won't echo stuff like this, but pass it to view etc., but I hope it's enough for illustration. Maybe someone comes with better design, but this is what I've used a few times.

Answer 3

id suggest , adding it to a library and then auto load the library so that each and every page on your website can access the same.
for autoloading reffer : autoload in codeigniter