How to properly pass settings to component in CakePHP

cakephp, php

Solution

You are passing the default settings at the wrong time. `__construct` gets called when you instantiate your component with the following line.

public $components = array('Example');

So if you want to pass parameters to the component initialization you do it like this:

public $components = array('Example'=>array('a1'=>'2', 'a2'=>'3'));

If you want to continue to pass the parameters with the following line:

$this->set('sum', $this->Example->sum(array('a1' => 2, 'a2' => 3)));

Then you will have to adjust your sum() function to:

public function sum($new_settings) {

    $sum = $new_settings['a1'] + $new_settings['a2'];
    return $sum;
}

Problem

I'm using CakePhp 2.2.3 and I'm making a component. Component: ``` App::uses('Component', 'Controller'); class ExampleComponent extends Component { public $settings = array(); protected $_defaults = array( 'a1' => null, 'a2' => 2 ); public function __construct(ComponentCollection $collection, $settings = array()) { $settings = array_merge($this->_defaults, $settings); $this->settings = $settings; } public function sum() { $sum = $this->settings['a1'] + $this->settings['a2']; return $sum; } } ``` Controller: ``` class ExampleController extends AppController { public $components = array('Example'); public function index () { $this->set('sum', $this->Example->sum(array('a1' => 2, 'a2' => 3))); } } ``` I got back (int) 2 as the result. But I think it should be 5. What I do wrong?

Original source