class MyClass extends yii\base\Component
{
    // 空的
}

class MyBehavior extends yii\base\Behavior
{
    // 行为的一个属性
    public $property1 = ‘This is property in MyBehavior.‘;

    // 行为的一个方法
    public function method1()
    {
        return ‘Method in MyBehavior is called.‘;
    }
}

$myClass = new MyClass();
$myBehavior = new MyBehavior();


$myClass->attachBehavior(‘myBehavior‘, $myBehavior);

echo $myClass->property1;
echo $myClass->method1();