Most frequently Asked Zend Framework Interview Questions and Answers for freshers and experienced pdf free download
1. What is a framework?
In software development, a framework is a defined support structure in which another software project can be organized and developed.
=> An abstract design
=> Set of common functionality
=> Developed for a particular domain
2. Why should we use framework?
Framework is a structured system
=> Source codes become more manageable
=> Easy to extend features
=> Rapid application development
3. Configuration in Zend Framework, application.ini file?
Configuration can be done in application.ini file in Zend framework. This file in the path application/configs/application.ini.
4. Checking whether form posted or not in Zend framework?
$request = $this->getRequest();
$_GET = $request->getParams();
$_POST = $request->getPost();
5. Does Zend Framework support PHP 4?
No. Zend Framework was built to use all of the sophisticated object oriented features of PHP 5 and take advantage of significant performance and security enhancements.
6. What is Bootstrapping?
Many PHP applications funnel server requests into a single (or few) PHP source file that sets up the environment and configuration for the application, manages sessions and caching, and invokes the dispatcher for their MVC framework. They can do more, but their main job is to take care of the consistent needs of every page of a web application.
In our Blueprint for PHP Applications, we will have a core bootstrapper that receives all dynamic requests for an application and applies a template for application behavior that we can later extend. It will allow us to later customize the functionality for each unique applications.
7. What is zend engine?
Zend Engine is used internally by PHP as a complier and runtime engine. PHP Scripts are loaded into memory and compiled into Zend opcodes.
8. What is zend engine in PHP?
Zend engine is like a virtual machine and is an open source, and is known for its role in automating the web using PHP. Zend is named after its developers Zeev and Aandi. Its reliability, performance and extensibility has a significant role in increasing the PHP’s popularity. The Zend Engine II is the heart of PHP 5. It is an open source project and freely available under BSD style license.
9. what is routing and how it's work?
Zend_Controller_Router_Rewrite is the standard framework router. Routing is the process of taking a URI endpoint (that part of the URI which comes after the base URL) and decomposing it into parameters to determine which module, controller, and action of that controller should receive the request. This values of the module, controller, action and other parameters are packaged into a Zend_Controller_Request_Http object which is then processed by Zend_Controller_Dispatcher_Standard. Routing occurs only once: when the request is initially received and before the first controller is dispatched.
Zend_Controller_Router_Rewrite is designed to allow for mod_rewrite-like functionality using pure PHP structures. It is very loosely based on Ruby on Rails routing and does not require any prior knowledge of webserver URL rewriting. It is designed to work with a single Apache mod_rewrite rule.
10. Zend_Cache provides a generic way to cache any data.
Caching in Zend Framework is operated by frontends while cache records are stored through backend adapters (File, Sqlite,Memcache...) through a flexible system of IDs and tags. Using those, it is easy to delete specific types of records afterwards (for example: "delete all cache records marked with a given tag").
The core of the module (Zend_Cache_Core) is generic, flexible and configurable. Yet, for your specific needs there are cache frontends that extend Zend_Cache_Core for convenience: Output, File, Functions and Class.
11. What is Front Controller?
It used Front Controller pattern. zend also use singleton pattern.
=> routeStartup: This function is called before Zend_Controller_Front calls on the router to evaluate the request.
=> routeShutdown: This function is called after the router finishes routing the request.
=> dispatchLoopStartup: This is called before Zend_Controller_Front enters its dispatch loop.
=> preDispatch: called before an action is dispatched by the dispatcher.
=> postDispatch: is called after an action is dispatched by the dispatcher.
12. Should I sign an individual CLA or a corporate CLA?
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.
13. How can I customize the appearance of forms generated by Zend_Form?
You're probably looking for decorators. All forms and form elements in Zend_Form use decorators to render their output.
14. Features of MVC in Zend Framework?
=> 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
15. Zend_Cache provides a generic way to cache any data.
Caching in Zend Framework is operated by frontends while cache records are stored through backend adapters (File, Sqlite,Memcache...) through a flexible system of IDs and tags. Using those, it is easy to delete specific types of records afterwards (for example: "delete all cache records marked with a given tag").
The core of the module (Zend_Cache_Core) is generic, flexible and configurable. Yet, for your specific needs there are cache frontends that extend Zend_Cache_Core for convenience: Output, File, Function and Class.
16. When do we need to disable layout?
At the time of calling AJAX to fetch we need to disable layout.
$this->_helper->layout()->disableLayout();
$this->_helper->viewRenderer->setNoRender(true);
17. Where is the model in ZF’s MVC implementation?
The model component can vary dramatically in responsibilities and data store from one MVC application to the next.
18. What is zend engine?
Zend Engine is used internally by PHP as a complier and runtime engine. PHP Scripts are loaded into memory and compiled into Zend opcodes.
19. What are Plugins in zend framework?
Ans. • Triggered by front controller events
• Events bookend each major process of the front controller
• Allow automating actions that apply globally
Creating Plugins:
• Extend Zend_Controller_Plugin_Abstract
• Extend one or more of the event methods
20. How to include js from controller and view in zend
From within a view file: $this->headScript()->appendFile(‘filename.js’);
From within a controller:
$this->view->headScript()->appendFile(‘filename.js’);
And then somewhere in your layout you need to echo out your headScript object:
<?=$this->headScript();?>
More Zend Framework Interview Questions: Click Here
More Zend Framework Multiple Choice Questions: Click Here
Zend Framework Tutorial pdf
1. What is a framework?
In software development, a framework is a defined support structure in which another software project can be organized and developed.
=> An abstract design
=> Set of common functionality
=> Developed for a particular domain
2. Why should we use framework?
Framework is a structured system
=> Source codes become more manageable
=> Easy to extend features
=> Rapid application development
3. Configuration in Zend Framework, application.ini file?
Configuration can be done in application.ini file in Zend framework. This file in the path application/configs/application.ini.
4. Checking whether form posted or not in Zend framework?
$request = $this->getRequest();
$_GET = $request->getParams();
$_POST = $request->getPost();
5. Does Zend Framework support PHP 4?
No. Zend Framework was built to use all of the sophisticated object oriented features of PHP 5 and take advantage of significant performance and security enhancements.
6. What is Bootstrapping?
Many PHP applications funnel server requests into a single (or few) PHP source file that sets up the environment and configuration for the application, manages sessions and caching, and invokes the dispatcher for their MVC framework. They can do more, but their main job is to take care of the consistent needs of every page of a web application.
In our Blueprint for PHP Applications, we will have a core bootstrapper that receives all dynamic requests for an application and applies a template for application behavior that we can later extend. It will allow us to later customize the functionality for each unique applications.
7. What is zend engine?
Zend Engine is used internally by PHP as a complier and runtime engine. PHP Scripts are loaded into memory and compiled into Zend opcodes.
8. What is zend engine in PHP?
Zend engine is like a virtual machine and is an open source, and is known for its role in automating the web using PHP. Zend is named after its developers Zeev and Aandi. Its reliability, performance and extensibility has a significant role in increasing the PHP’s popularity. The Zend Engine II is the heart of PHP 5. It is an open source project and freely available under BSD style license.
9. what is routing and how it's work?
Zend_Controller_Router_Rewrite is the standard framework router. Routing is the process of taking a URI endpoint (that part of the URI which comes after the base URL) and decomposing it into parameters to determine which module, controller, and action of that controller should receive the request. This values of the module, controller, action and other parameters are packaged into a Zend_Controller_Request_Http object which is then processed by Zend_Controller_Dispatcher_Standard. Routing occurs only once: when the request is initially received and before the first controller is dispatched.
Zend_Controller_Router_Rewrite is designed to allow for mod_rewrite-like functionality using pure PHP structures. It is very loosely based on Ruby on Rails routing and does not require any prior knowledge of webserver URL rewriting. It is designed to work with a single Apache mod_rewrite rule.
10. Zend_Cache provides a generic way to cache any data.
Caching in Zend Framework is operated by frontends while cache records are stored through backend adapters (File, Sqlite,Memcache...) through a flexible system of IDs and tags. Using those, it is easy to delete specific types of records afterwards (for example: "delete all cache records marked with a given tag").
The core of the module (Zend_Cache_Core) is generic, flexible and configurable. Yet, for your specific needs there are cache frontends that extend Zend_Cache_Core for convenience: Output, File, Functions and Class.
11. What is Front Controller?
It used Front Controller pattern. zend also use singleton pattern.
=> routeStartup: This function is called before Zend_Controller_Front calls on the router to evaluate the request.
=> routeShutdown: This function is called after the router finishes routing the request.
=> dispatchLoopStartup: This is called before Zend_Controller_Front enters its dispatch loop.
=> preDispatch: called before an action is dispatched by the dispatcher.
=> postDispatch: is called after an action is dispatched by the dispatcher.
12. Should I sign an individual CLA or a corporate CLA?
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.
13. How can I customize the appearance of forms generated by Zend_Form?
You're probably looking for decorators. All forms and form elements in Zend_Form use decorators to render their output.
14. Features of MVC in Zend Framework?
=> 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
15. Zend_Cache provides a generic way to cache any data.
Caching in Zend Framework is operated by frontends while cache records are stored through backend adapters (File, Sqlite,Memcache...) through a flexible system of IDs and tags. Using those, it is easy to delete specific types of records afterwards (for example: "delete all cache records marked with a given tag").
The core of the module (Zend_Cache_Core) is generic, flexible and configurable. Yet, for your specific needs there are cache frontends that extend Zend_Cache_Core for convenience: Output, File, Function and Class.
16. When do we need to disable layout?
At the time of calling AJAX to fetch we need to disable layout.
$this->_helper->layout()->disableLayout();
$this->_helper->viewRenderer->setNoRender(true);
17. Where is the model in ZF’s MVC implementation?
The model component can vary dramatically in responsibilities and data store from one MVC application to the next.
18. What is zend engine?
Zend Engine is used internally by PHP as a complier and runtime engine. PHP Scripts are loaded into memory and compiled into Zend opcodes.
19. What are Plugins in zend framework?
Ans. • Triggered by front controller events
• Events bookend each major process of the front controller
• Allow automating actions that apply globally
Creating Plugins:
• Extend Zend_Controller_Plugin_Abstract
• Extend one or more of the event methods
20. How to include js from controller and view in zend
From within a view file: $this->headScript()->appendFile(‘filename.js’);
From within a controller:
$this->view->headScript()->appendFile(‘filename.js’);
And then somewhere in your layout you need to echo out your headScript object:
<?=$this->headScript();?>
More Zend Framework Interview Questions: Click Here
More Zend Framework Multiple Choice Questions: Click Here
Zend Framework Tutorial pdf
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