Passing parameters when initializing a library in Codeigniter - codeigniter

Question

I am really new to Codeigniter, and just learning from scratch. In the CI docs it says:
$params = array('type' => 'large', 'color' => 'red');
$this->load->library('Someclass', $params);
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Someclass {
public function __construct($params)
{
// Do something with $params
}
}
Can you give me simple example how to pass data from controller to external library using array as parameters? I'd like to see a simple example.

Answer 1

All Codeigniter "library" constructors expect a single argument: an array of parameters, which are usually passed while loading the class with CI's loader, as in your example:
$params = array('type' => 'large', 'color' => 'red');
$this->load->library('Someclass', $params);
I'm guessing you're confused about the "Do something with $params" part. It's not necessary to pass in any params, but if you do you might use them like this:
class Someclass {
public $color = 'blue'; //default color
public $size = 'small'; //default size
public function __construct($params)
{
foreach ($params as $property => $value)
{
$this->$property = $value;
}
// Size is now "large", color is "red"
}
}
You can always re-initialize later like so, if you need to:
$this->load->library('Someclass');
$this->Someclass->__construct($params);
Another thing to note is that if you have a config file that matches the name of your class, that configuration will be loaded automatically. So for example, if you have the file application/config/someclass.php:
$config['size'] = 'medium';
$config['color'] = 'green';
// etc.
This config will be automatically passed to the class constructor of "someclass" when it is loaded.

Answer 2

In libraries directory create one file Someclass_lib.php
Here is your Library code
if (!defined('BASEPATH')) exit('No direct script access allowed');
class Someclass_lib
{
public $type = '';
public $color = '';
function Someclass_lib($params)
{
$this->CI =& get_instance();
$this->type = $params['type'];
$this->color = $params['color'];
}
}
Use this code when you want to load library
$params = array('type' => 'large', 'color' => 'red');
$this->load->library('Someclass_lib', $params);