Solution: Introducing OOP in PHP

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Atul Prakash
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PHP is the most popular server-side scripting language in the world. We can code in PHP using the procedural approaches and also in the object-oriented ways. Object-oriented programming, i.e., OOP is an advanced way of coding that was added to PHP5 for the first time. After the advent of OOP in PHP, developing complex and modular programmes became easier.The built-in OOP capabilities of PHP creates a powerful infrastructure that places it at the level of C#, Perl,Ruby and Java etc.
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PHP is the most popular server-side scripting language in the world. We can code in PHP using the procedural approaches and also in the object-oriented ways. Object-oriented programming, i.e., OOP is an advanced way of coding that was added to PHP5 for the first time. After the advent of OOP in PHP, developing complex and modular programmes became easier.The built-in OOP capabilities of PHP creates a powerful infrastructure that places it at the level of C#, Perl,Ruby and Java etc.

When PHP was developed, it did not incorporate the object-oriented conceptions. In PHP3, for the first time, some basic object-oriented stuff was introduced. In PHP4, the object-oriented things matured to a good extent. In PHP5, a complete model of object-oriented programming was offered.

Object-oriented programming is the modern approach to handle the projects as it offers increased ease to handle complex situations. Naturally, if someone learns the object-oriented programming in PHP, it is going to help him in learning other object-oriented languages too. In the beginning, a procedural programmer may feel that OOP in PHP is a very complicated thing, but in due course, he realizes that actually, this is more straightforward and easier solution. Faster too.

There are many advantages of using the OO ways of development. The old procedural programming has been very tough and every programmer is not capable of doing complex things using the procedural approach. Even veteran programmers have to face many serious issues while trying to do something complex.

To learn and master the OOP programming in PHP, we need to focus on its basics. Once the fundamental things are clear, advanced things can be learned. The basic problem that comes forth is related to the ways of thinking. Procedural approaches are not going to be of use here. Everything here is to be thought of as an object. This may take some time to master. But once this basic hurdle is passed, it is all fun. One of the suggested ways is to draw the objects on a piece of paper as boxes and enlist the methods and properties within those boxes and use arrows to indicate the relationships of the objects.

OOP is about modular code and we keep our modular code in dedicated files and we could insert that in our normal PHP pages. Very soon a learner finds that OOP has made his life much comfortable as a programmer. To have reusable objects is really a boon. It is easy to update and maintain an OOP code as compared to the procedural programming. So the tenet of PHP programming is DRY, i.e. don’t repeat yourself. One of the biggest nightmares of programmers is about maintaining the code when data is declared over and over again. In a procedural programming, it becomes the game - Where’s Waldo! So much duplication and hunt for concerned pieces of the code.

PHP is moving in the OOP direction. Many famous PHP extensions like Smarty, that is a template engine that works for the view or presentation side of the code and PEAR, i.e. the PHP Extension and Application Repository, which is a repository of PHP software code are object-oriented.All the frameworks of PHP are object-oriented and to learn and use them requires grasp over the object-oriented approach of programming. 

The object-oriented programming uses the real world imagery. In this world, everything around us is an object. Our mobile phone, our laptops, our car, our houses all are objects. These objects have several properties and also specific functionalities are related to them. So an object is a set of properties and functionalities in some physical form. In the realm of programming, the same conception is used. We create objects there. It means we write the code in such a way that some specific piece of code could be understood as if it were an object. These objects are cast through specific templates and those templates are called as classes. So basically, we start with the classes and then move on.Naturally, there are properties and methods or functionalities related to those programming objects. Interestingly, these objects inherit the properties and functionalities of other objects. There is the child-parent relationship between some objects and this inheritance takes place between a parent and a child object. This is just the start, there are many such interesting conceptions like polymorphism, overloading, data abstraction, encapsulation, constructors and destructors and much more.

In brief, OOP in PHP is a wondrous thing, very powerful and exactly fit for this agile environment of software development.

on August 02nd, 2018 (10:43 pm)
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