Cakephp - one variable accessible in view and controller

Question

I want to define an array which I can use in AppController and in the default layout.

How can I do this in CakePHP?

Answer 1

$this->set('arr', array('one', 'two'));

// Accessible in controller as 
$this->viewVars['arr'];

// Accessible in view/layout as
echo $arr;

Answer 2

If you set any variable in AppController beforeRender() function,and set that variable,then you can access easily that variable anywhere in the view files

function beforeRender() {
    parent::beforeRender();
    $sample_arr = array("abc","xyz");
    $this->set('sample_arr',$sample_arr);
}

In your Layout File Just Print that Array like

print_r($sample_arr);