Interview Questions and Answers

The basic difference between these objects is the ‘scope’ in which they are valid:

a) Zend_Registry : request scope
b) Zend_Session : session scope

a) Zend_Registry is used to store objects/values for the current request. In short, anything that you commit to Registry in index.php can be accessed from other controllers/actions (because EVERY request is first routed to the index.php bootstrapper via the .htaccess file). Config parameters and db parameters are generally prepped for global use using the Zend_Registry object.

b) Zend_Session actually uses PHP sessions. Data stored using Zend_Session can be accessed in different/all pages. So, if you want to create a variable named ‘UserRole’ in the /auth/login script and want it to be accessible in /auth/redirect, you would use Zend_Session.

At the time of calling AJAX to fetch we need to disable layout.
$this->_helper->layout()->disableLayout();
$this->_helper->viewRenderer->setNoRender(true);

The model component can vary dramatically in responsibilities and data store from one MVC application to the next.

Example1:
Public function indexAction() {
If(condition)
$this->render(‘yourview.phtml’);
Else
Index.phtml;

Example2:
Public function indexAction() {
}
Now in your index.phtml you can have this statement to call other view
$this->action(‘action name’,’controller name’,’module name’,array(‘parameter name’=>’parameter value’));

From within a view file: $this->headLink()->appendStylesheet(‘filename.css’);
From within a controller: $this->view->headLink()->appendStylesheet(‘filename.css’);
And then somewhere in your layout you need to echo out your headLink object:
headLink();?>

You have to quote the strings,
$this->getAdapter ()->quote ( );
$select->where ( ” = “, );
OR (If you are using the question mark after equal to sign)
$select->where ( ” = ? “, );

=> Declare custom routing rules
Not limited to “controller/action/param” format
=> Optional Controller Plugins, Action Helpers, and View Helpers
ErrorHandler plugin handles exceptions, 404 errors, etc.
FlashMessenger, Redirector, ViewRenderer helpers
Output common HTML elements in views
=> Extensible interfaces
Write your own plugins and helpers

The file element needs a special file decorator, which is added by default. When you set your own decorators for file elements, you delete the default decorators.
For example:
$element->setDecorators(array(
array('ViewHelper'),
array('Errors')
));
You should use a File decorator instead of the ViewHelper for the file element, like so:
$element->setDecorators(array(
array('File'),
array('Errors')
));

You're probably looking for decorators. All forms and form elements in Zend_Form use decorators to render their output.

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If you are contributing code as an individual- and not as part of your job at a company- you should sign the individual CLA. If you are contributing code as part of your responsibilities as an employee at a company, you should submit a corporate CLA with the names of all co-workers that you foresee contributing to the project.