Where is the best place to include inc file??

[eluser]OKIEWARDOYO[/eluser]
I have a code like below
Note that $options is a variable in file options.inc.php

Code:

class Welcome extends CI_Controller {

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

function index()
{
  include "options.inc.php";
  return $options['status_index'];
}

function read()
{
  include "options.inc.php";
  return $options['status_read'];
}

function write()
{
  include "options.inc.php";
  return $options['status_write'];
}
}

I'm confusing, where is the best place to place the line of code include "options.inc.php";

i want the code like below

Code:

class Welcome extends CI_Controller {

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

function index()
{
  global $options;
  return $options['status_index'];
}

function read()
{
  global $options
  return $options['status_read'];
}

function write()
{
  global $options
  return $options['status_write'];
}
}

thanks