Yii saving session state
From zen2
//set a state
Yii::app()->user->setState('myVariable','myValue');
// get state
$myVariable = Yii::app()->user->getState('myVariable');
//set a state
Yii::app()->user->setState('myVariable','myValue');
// get state
$myVariable = Yii::app()->user->getState('myVariable');