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Zend Framework (ZF2 & ZF3) Interviews Questions - Popular PHP Framework

1: What Is Zend Framework? 2: Why Zend Framework?
3: What Are the Features of Zend Framework? 4: What Are the Goals of Zend Framework?
5: What Is full form of CLA in Zend Framework? 6: What Are the Advantages of Zend Framework?
7: Does Zend Framework support PHP 7? 8: What New In Zend Framework 2.0?
9: What New In Zend Framework 3.0? 10: What Is Zend engine?
11: How To Install Zend Framework? 12: What Is the major difference between Zend_Auth and Zend_Acl?
13: What Is the minimum PHP version required to run Zend Framework 2.0? 14: When Do we need to disable layout?
15: How To disable layout from controller in Zend Framework? 16: How To change the View render file from controller?
17: What Is Front Controller? 18: How To protect your site from sql injection in zend when using select query?
19: Where we set configuration in zend framework? 20: What Zend Acl?
21: What Are Plugins in zend framework? 22: What Are the difference between Zend_Registry and Zend_Session?
23: What Is MVC? 24: Explain the Features of MVC in Zend Framework?
25: Why can’t Zend_Form render my File element without errors? 26: What does autoloader in Zend Framework?
27: What Is Zend Controller Front in Zend Framework? 28: What Is The Use Of Bootstrap?
29: What Is the purpose of bootstrap in Zend framework? 30: What Is Zend\Authentication?
31: What Is Authorization in Zend Framework? 32: What Are the important component of Zend framework?
33: What Is Service Manager in Zend framework? 34: What Is Event Manager in Zend framework?
35: How To include CSS in Zend framework? 36: How To change the View render file from controller?
37: How To protect your site from sql injection in zend when using select query? 38: How To check post method in zend framework?
39: How To get all POST data? 40: How To get all GET data?
41: How To create object of Model? 42: How To get variable's value from get?
43: How To redirect to another page from controller? 44: How To include js from controller and view in Zend framework?
45: What Is Models in Zend Framework? 46: How To Install Form Component in Zend Framework?


#1 Question

What Is Zend Framework?

Zend Framework (ZF) is an open-source, object-oriented, secure, enterprise ready web application framework and it is implemented in PHP 7.

Zend Framework (ZF) is basically a collection of PHP professional and it’s based on packages. It is developed by Zend Technologies in 2005.

Zend Framework (ZF) is often called a 'component library', because it has many loosely coupled components that you can use more or less independently.

Zend Framework 3 evolved from both Zend Framework 1 and 2; cumulatively, the previous versions were downloaded more than 15 million times.

Zend Framework (ZF) is a collection of professional PHP packages with more than 346 million installations.

Zend frameworks (ZF) features are as follows:
  • It is object oriented
  • Secure
  • Every component and architecture is independent
  • MVC supports templates
  • Supports multiple databases
  • High performance
  • Enterprise Ready
  • Autoclaving class system
  • Largest Community
  • Reusable Code

#2 Question

Why Zend Framework?

Zend framework (ZF) is used to develop fast, secure web applications and services using PHP 5.6+, and it provides 100% object-oriented code using a broad spectrum of language features.

Zend is also contains some other features - object oriented, Enterprise Ready, High performance, Supports multiple databases, supports MVC templates that why we are using Zend framework.

#3 Question

What Are the Features of Zend Framework?


Zend Framework (ZF) is an open-source, object-oriented, secure, enterprise ready web application framework and it is implemented in PHP 7.

Zend frameworks (ZF) features are as follows:
  • It is object oriented
  • Secure
  • Every component and architecture is independent
  • MVC supports templates
  • Supports multiple databases
  • High performance
  • Enterprise Ready
  • Autoclaving class system
  • Largest Community
  • Reusable Code
  • And so on..


#4 Question

What Are the Goals of Zend Framework?


  • Flexibility, Compatibility, Extensibility and Portability
  • Automate selection and rendering of layouts when used with the Zend Framework MVC components
  • Zend provides RESTful API development support
  • Supports multi databases including PostgreSQL, SQLite etc
  • Provide separate scope for layout related variables and content
  • Provide namespace matching
  • Flexible URI Routing
  • Allow toggling error suppression
  • Allow the autoloader to act as a fallback autoloader
  • Allow manipulation of the SPL autoloader callback chain
  • Allow specifying custom callbacks for auto-loading
  • Data encryption
  • Code reusable and easier to maintain


#5 Question

What Is full form of CLA in Zend Framework?

The full name of CLA is - Contributor License Agreement (CLA) and It is requires the signature of a Contributor License Agreement (CLA) based on the Apache Software.
It is an open-source, object-oriented web application framework that is implemented in PHP 5.


#6 Question

What Are the Advantages of Zend Framework?

There are some advantages of the Zend Framework are listed below.
  • More Secure
  • Good Performance
  • Support Loosely Coupled
  • Testing - very easy and quick testing using PHPUnit
  • Flexible URI Routing
  • Supports multi databases


#7 Question

Does Zend Framework support PHP 7?

Yes! Of course, PHP 7.0 ends active support at the end of this year, on 3 December 2017; moving to 7.0 means that we could anticipate further version bumps in a very short time frame.
The benefits to jumping to PHP 7, including:
  • Scalar type hints
  • Null coalescing operator
  • Return type hints
  • Anonymous classes
  • Spaceship operator
  • Potential for enabling strict type checking


#8 Question

What New In Zend Framework 2.0?

Added new Features of ZF2 are :
  • Added New MVC architecture based on events
  • Increased performance - improving performance of Zend\ServiceManager and Zend\EventManager components
  • PHP 7 support
  • New Packaging System -A focus on de-coupling packages, to allow re-use in a greater number of contexts
  • New auto-loading class system
  • A focus on documentation - Now each component repository contains its own documentation. Documentation is now in Markdown format and has become better designed.
  • New Dependencies System
  • New Event Manager implemented by the class ZendServiceManager that replace the component ZendApplication


#9 Question

What New In Zend Framework 3.0?

The Zend Framework 3 initiatives also included a number of new features, primarily around PSR-7 (HTTP Message interfaces) support. These include:
  • Diactoros, the original and leading PSR-7 implementation in the PHP ecosystem
  • Expressive, a PSR-7 middleware micro-framework
  • Stratigility, a PSR-7 middleware foundation based on the node.js Sencha Connect


#10 Question

What Is Zend engine?

Zend Engine is the open source scripting engine that interprets the PHP programming language and it was developed by Andi Gutmans and Zeev Suraski.
Zend Engine is heart of PHP and It internally used by PHP as a complier and runtime engine. PHP Scripts are loaded into memory and compiled into Zend opcodes.

The Zend Engine is responsible for the following tasks in PHP:

  • High performance parsing, in-memory compilation and execution of PHP scripts
  • Providing all of the standard services, including memory management, resource management and more for the whole of PHP
  • Implementation of all of the standard data structures of PHP
  • Overloading the Object Oriented syntax, for integration with Java and .NET


#11 Question

How To Install Zend Framework?


Zend Framework is a collection of 60+ packages for professional PHP development. Each package is available on GitHub and can be installed via Composer.
    https://github.com/zendframework
    https://getcomposer.org/
   

The Zend Framework can be installed in two ways.
  • Manual installation
  • Composer based installation

Manual installation: go to this link for downloads and install : go to link - https://framework.zend.com/downloads/archives

Composer based installation: Installation of Zend Framework is only a Composer command away: This will install all 61 packages required in composer.json
    $ composer require zendframework/zendframework
  
You can install MVC package using following command:
    $ composer require zendframework/zend-mvc
  

for more detail, go to https://framework.zend.com/downloads
By Anil Singh | Rating of this article (*****)

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