Ps02 cint24 mvc in php
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This document summarizes a seminar on MVC in PHP. It begins with objectives and challenges of developing applications without frameworks. It then introduces MVC and defines the core components - models, views, and controllers. Popular MVC frameworks for PHP like CodeIgniter, Zend Framework, and CakePHP are described. The principles of DRY (Don't Repeat Yourself) coding and bibliography are also mentioned. The seminar provides an overview of model-view-controller architecture and frameworks for building PHP applications.
![Bibliography
Pro PHP MVC Chris Pitt APRESS Nov-2012
• Webinar on Principles of MVC For PHP Developers by EDUREKA ON
04/Aug./15
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Ps02 cint24 mvc in php
- 1. Institute Name: Shree P.M.Patel Institute of Post Graduation Studies and Research in Applied Science Managed By: Anand People Medicare Society, Anand Seminar Topic: MVC in PHP Seminar By, Kavankumar Nileshkumar Solanki MSc.IT 2ND Semester Roll No.: 03
- 2. Objectives Challenges Faced when Designing an Application Without Framework Introduction to MVC What is MVC? Benefits of MVC Popular MVC Frameworks DRY Bibliography
- 3. Challenges Faced when Designing an Application without a Framework Complexity in Coding in straight PHP Everything must be tested; which is difficult Difficult to re-use code Hard code everything from scratch Teamwork challenges -parallel programming cannot be done efficiently
- 4. Introduction to MVC • Software development is not a new idea. Ada Lovelace is said to have written the first computer program in the mid-nineteenth century for the Analytical Engine, the first mechanical computer prototyped by Charles Babbage. • Designing good software is hard. • It involves taking into consideration all aspects of the application you need to build, and is complicated further by the need to be specific enough to your current requirements to get the job done, while being generic enough to address future problems. • Many experienced developers have had these problems and, over time, common patterns have emerged that assist in solving them. • Christopher Alexander, a structural architect, first described patterns in such a way that they can be applied to software development. He said, “Each pattern describes a problem which occurs over and over again in our environment, and then describes the core of the solution to that problem, in such a way that you can use this solution a million times over, without ever doing it the same way twice.”
- 5. What is MVC? MVC (Model-View-Controller) is a software design pattern built around the interconnection of three main component types, in a programming language such as PHP, often with a strong focus on object-oriented programming (OOP) software paradigms. The three component types are loosely termed models, views, and controllers.
- 6. Model The model is where all the business logic of an application is kept. Business logic can be anything specific to how an application stores data, or uses third-party services, in order to fulfill its business requirements. If the application should access information in a database, the code to do that would be kept in the model.
- 7. View The view is where all of the user interface elements of our application are kept. This can include our HTML markup, CSS style sheets, and JavaScript files. Anything a user sees or interacts with can be kept in a view, and sometimes what the user sees is actually a combination of many different views in the same request.
- 8. Controller The controller is the component that connects models and views together. Controllers isolate the business logic of a model from the user interface elements of a view, and handle how the application will respond to user interaction in the view. Controllers are the first point of entry into this trio of components, because the request is first passed to a controller, which will then instantiate the models and views required to fulfill a request to the application.
- 9. Benefits of MVC • There is no point explaining what MVC is without knowing why you should use it. Remember Christopher Alexander’s patterns that I mentioned earlier? • MVC is one of the many patterns that will be explained in this book, but to understand the usefulness of this design pattern, we must look toward the problems it helps to alleviate.
- 10. Popular MVC Frameworks • There are many great PHP frameworks availible, but if we limit our view to just three, I think we can get a good idea of what they have in common, and what makes each special. • These are not the best or the only PHP MVC frameworks, but simply a good cross-section of the different approaches to PHP MVC development.
- 11. CodeIgniter • CodeIgniter is the first and simplest of the frameworks we will be looking into. • It is developed and maintained by Ellis Lab and can be described as an open source Expression Engine. • You can download CodeIgniter at http://codeigniter.com. • You can also learn more about EllisLab and ExpressionEngine at http://ellislab.com.
- 12. Zend Framework • Zend Framework is an extensive collection of loosely coupled code libraries that can form the basis of an MVC architecture. • Zend Framework takes quite a bit of effort to understand and master relative to other popular MVC frameworks. • It is developed by Zend Technologies and enjoys all the benefits of a large, stable community and wide adoption. • Whereas frameworks like CodeIgniter strive to be lightweight, favoring just the essentials, Zend Framework includes libraries that help developers utilize a wide range of third-party services and APIs. • You can download Zend Framework at http://framework.zend.com. • You can also learn more about Zend at http://zend.com.
- 13. CakePHP • CakePHP is arguably the most popular of the three frameworks. • Unlike the previous two frameworks, it is not governed by any one corporate entity. • It has a large community and is widely adopted. • It favors convention over configuration, which means a lot of the finer details are assumed and automated. • This is apparent in every area of the framework, and you will often find yourself wondering how CakePHP is doing something you didn’t ask it to do, both good and bad. • This means you can develop an application quickly, but also that you might have a hard time when you need to make very specific changes.
- 14. Continue • This is even seen in the code-generation command-line tool: Bake. • Within minutes, it can generate a working application, just by following command-line prompts and filling in the blanks with default parameters and behaviors. • You can download CakePHP at http://cakephp.org.
- 15. DRY • DRY just means "Don't Repeat Yourself". Make sure that when you write code, you only write it one time. • The DRY principle is stated as "Every piece of knowledge must have a single, unambiguous, authoritative representation within a system."
- 17. Bibliography Pro PHP MVC Chris Pitt APRESS Nov-2012 • Webinar on Principles of MVC For PHP Developers by EDUREKA ON 04/Aug./15 [ http://www.edureka.co/php-mysql]