Introduction to Zend Framework 2by Bo Andersen

What is Zend Framework 2?A popular and professional open source PHP framework

Builds on best practices

Enterprise ‘friendly’

Modern in that it utilizes new tools and technologies

Enables developers to write better code, and to write it fast

Mainly used for web applications

Initially released in September 2012

Developed by Zend Technologies (+ the community)

Benefits of Zend Framework 2

Modular architectureCode is logically separated into modules

Modularity is a core part of the framework, unlike in ZF1

Separation of concerns

Cleaner and more structured code

Highly extensible

ModernUses modern PHP features (PHP >= 5.3)

Namespaces

Lambda functions and closures

Late static binding

100% object-oriented

All of the code base is written within classes - and almost all of your code will be, too!

Loosely coupled componentsZF2 components are developed with minimal dependencies on other

components

Together, the components form an extensive web application framework

Zend Framework 2 is mostly used for web application, but not exclusively

Components can be used as standalone libraries

Even in applications that are not developed in ZF2!

Dependency Injection (DI)ZF2 provides a dependency injection container

Manages dependencies among services/objects

Implements IoC (Inversion of Control)

Also accomplishes this by implementing the service locator pattern

The benefits of using dependency injection are many

The code base is much, much easier to test

Avoid repeatably wiring objects together

The use of the DI container is optional

You don’t have to worry about this for now at all

In ZF2, one often practices Inversion of Control without even knowing it!

Extensively unit testedZend Framework 2 is extensively unit tested with phpUnit

This means that the framework is more robust

Less error prone when new features or patches are introduced

The ZF2 project uses Git for revision control, and pull requests must be accompanied with appropriate unit tests

Ensures a higher code standard than many other open source projects

Good quality control is enforced

and much more!

This presentation is part of my Zend Framework 2 online course.

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