Cake PHP – OOPS approach for PHP

What is CakePHP ? CakePHP is written in PHP and is modeled after the concepts of Ruby on Rails (ROR) CakePHP is a rapid development framework for PHP that provides an extensible architecture for developing, maintaining, and deploying applications. CakePHP makes use of commonly known design patterns like ActiveRecord, Association Data Mapping, Front Controller and MVC.

Why use CakePHP ? Model, View, Controller Architecture Helps developers to reduce code repentance in creation of websites or web applications. Application Scaffolding. Built in view helpers for AJAX, JavaScript, HTML Forms. Access Control Lists

Why use CakePHP ? Data Sanitization Security, Session, and Request Handling Components Flexible View Caching Full support for PHP OOP’s approach And It is developed under the MIT license so it is free for everyone

Where to use CakePHP ? Highly scalable projects Projects with Heavy Database Interactions and Object Relational Mapping Projects where caching is needed Projects which needs to be implemented with MVC approach Where code re-usability is necessity

Where not to use CakePHP ? Basic Blog Basic CMS Basic E-Commere Basic Forums / Bulletin Boards

Who is using CakePHP ?

What is MVC approach?

Model/View/Controller (MVC) is a software architecture used for building applications. MVC separates the business logic and application data from the presentation data to the user. Applications built using MVC approach are re-usable and expressive.

What is OOPs? Object-oriented programming is a method of implementation in which programs are organized as cooperative collections of objects, each of which represents an instance of some class, and whose classes are all members of one or more hierarchy of classes united via inheritance relationships.

OOPs advantages over conventional approaches OOP provides a clear modular structure for programs which makes it good for defining abstract data types where implementation details are hidden and the unit has a clearly defined interface.. OOP makes it easy to maintain and modify existing code as new objects can be created with small differences to existing ones.

OOPs advantages over conventional approaches OOP provides a good framework for code libraries where supplied software components can be easily adapted and modified by the programmer. This is particularly useful for developing graphical user interfaces.

Characteristics of OOPs Class definitions Objects Abstraction Encapsulation Inheritance Generic classes Polymorphism Operator and Function overloading. Message Passing

How OOPs work Classes describe objects Objects inherit from superclasses

Class Hierarchies

Advantages of OOPs Simplicity Modularity Modifiability Extensibility Maintainability Re-usability

OOPs in PHP PHP 5 has a full object model as compared to PHP4. PHP treats objects in the same way as references or handles, meaning that each variable contains an object reference rather than a copy of the entire object. PHP supports Visibility, abstract and final classes and methods, additional magic methods, interfaces, cloning and typehinting

OOPs Features in PHP Autoloading : Autoloading is a mechanism where you can specify where the code should look for a class name that follows a particular pattern. Once you have set this up, usually very early in the script when everything gets configured, then you can simply instantiate classes without having to expressly include their declaration files.

OOPs Features in PHP Interfaces : PHP does not have multiple inheritance, so each object can only have one parent, and the top-level parent of all objects is of type StdClass. However PHP does support interfaces, which allows polymorphism (one class which can look like another) in PHP.

OOPs Features in PHP Type Hinting : We use the instanceOf comparison operator to check that an object with the correct capabilities had been received, but we can make this simpler by using type hinting in our functions and object methods..instanceOf

OOPs Features in PHP Fluent Interfaces : This is a neat trick that can often be seen in particular in framework code, so it is worth a mention here. A “fluent interface” is one where you can chain the methods together, useful especially where you would be calling a sequence of methods on the same object.

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