yii - variable available to each controller

Question

I am new to yii.

I am using more than 1 controller in my website and each controller has few actions.

I want to use some variables across each controller (Value of variable will be fixed, I need some constants for a formula). Whats the best place (standard way) to define those variables ? Should I use session ? (as value is not going to change).

Answer 1

Not sure what you are using your vars for, but you can do it by defining them in your config main.php

'params'=>array(
'someVar1'=>'varValue1',
    'someVar2' => 'varValue2',
),

Then you can access them in ANYWHERE by calling

Yii::app()->params['someVar1']

They will be available anywhere in your application.

Or you can extend all your controllers off of a base class and define your constants there

Base Controller:

class Controller extends CController { 

    const SOME_VAR = 'someValue'; 
}

Your controller:

class YourController1 extends Controller
{
    public function actionIndex()
    {
        echo parent::SOME_VAR;
    }

}

Your other controller:

class YourController2 extends Controller
{
    public function actionLogin()
    {
         echo parent::SOME_VAR;
    }

 }