YII interview questions and answers for fresher

Question: What is Yii?
Yii is a PHP framework which is based on MVC (Model View Controller).

Question: Is it opensource?
Yes, It is opensource. Download and use as per your project requirement. Question: What is full form of Yii
Yes it is.

Question: In which language, It is written?
PHP.

Question: What is current stable version of Yii?
Version: 2.0.7 dated February 14, 2016.

Question: What is offical website of Yii Framework?
http://www.yiiframework.com

Question: From where i an download Yii Framework?
http://www.yiiframework.com/download

Question: How to start Yii?
http://www.yiiframework.com/tour

Question: What are main feature of Yii framework?

MVC design pattern
Web Service available for Apps like android
Internationalization and localization translation for multilingual.
Caching for speed up the application
Error handling and logging for tracking
cross-site scripting (XSS), cross-site request forgery (CSRF) protection
PHPUnit and Selenium for testing.
Automatic code generation help us to fast development.

Question: How to set default controller on Yii?

array(
    'name'=>'Yii Framework',
    'defaultController'=>'site',
);

Question: How to get current controller id?

echo Yii::app()->controller->id;

Question: How to get current action id?

echo Yii::app()->action->id;

Question: What is the first function that gets loaded from a controller? ?

index

Question: How can we use ajax in Yii?
use ajax helper

Question: What are two type of models in YII

Form models
active records

Question: What are active records model?
Active Record is a design pattern used to abstract database access in an object-oriented way.
active records model is based on this design pattern.

Question: How to define a form model?

class MyLoginForm extends CFormModel
{
    public $username;
    public $password;
    public $rememberMe=false;
}

Question: How to set validation in Form Model?

class MyLoginForm extends CFormModel
{
    public $username;
    public $password;
    public $rememberMe=false; 
    private $_identity;
 
    public function rules()
    {
        return array(
            array('username, password', 'required'),
            array('rememberMe', 'boolean'),
            array('password', 'authenticate'),
        );
    }
 
    public function authenticate($attribute,$params)
    {
        $this->_identity=new UserIdentity($this->username,$this->password);
        if(!$this->_identity->authenticate())
            $this->addError('password','username or password Incorrect .');
    }
}

Question: What are the core application components available on Yii?