CodeIgniter - functions available in multiple controllers

Question

I'm relatively new to CodeIgniter, and so far my project is created entirely using Controllers and Views. However, as it's getting more complex, I'm finding that there are certain functions that I've copy-pasted into multiple controllers -- this is hardly ideal as editing one requires remembering to edit all of the others as well.

There is a plethora of CI features that I know nothing about - models, helpers, extending "Controller", etc. etc. Where should I look to in order to accomplish the above? I suppose I could also import() a block of code directly, although I get the feeling that this is not "the CodeIgniter Way".

Dominic Tancredi · Accepted Answer · 2011-04-01 01:08:42Z

4

Put all your "utility" functions into a "helper manager" and access that.

http://codeigniter.com/user_guide/general/helpers.html

answered Apr 1, 2011 at 1:08

Dominic Tancredi

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3 Comments

Mala Over a year ago

Thanks for the link. The article doesn't say anything about how to create my own helpers. Is it as easy as creating a file in the helpers folder that doesn't begin with "MY_"?

dumazy Over a year ago

What happens if you load two helpers that have the same function name? Which function will be executed when called?

Dominic Tancredi Over a year ago

You should extend the "Helper" that has the same function name (i.e. MY_array_helper.php). If you don't, I'm not certain, but most likely it will call the last defined method in PHP.

bl00dshooter · Accepted Answer · 2011-04-01 01:10:21Z

2

Or create a base controller, and extend other controllers from it.

I'm sure Phil Sturgeon has a guide on it: http://philsturgeon.co.uk/blog/2010/02/CodeIgniter-Base-Classes-Keeping-it-DRY

answered Apr 1, 2011 at 1:10

bl00dshooter

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1 Comment

Dominic Tancredi Over a year ago

Phil has a guide on everything

Arun David · Accepted Answer · 2011-04-01 01:21:44Z

2

base_controller.php

<?php
class Base_Controller extends CI_Controller {
    function __construct()
    {
        parent::__construct();
    }
    function base_function(){

        }
}
?>

other_controller.php

<?php
require_once('base_controller.php');
class Other_Controller extends Base_Controller{
    function __construct()
    {
        parent::__construct();
    }
    function index()
    {
    $this->base_function(); 
    }
}
?>

edited Apr 1, 2011 at 1:21

answered Apr 1, 2011 at 1:15

Arun David

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