PHP is a server-side scripting language, mainly used for web development but also used as a general-purpose programming language. Object-Oriented Programming (PHP OOP), is a type of programming language principle added to php5, that helps in building complex, reusable web applications.
The Object Oriented concepts in PHP are:
Class − This is a programmer-defined data type, which includes local functions as well as local data. You can think of a class as a template for making many instances of the same kind (or class) of object.
Object − An individual instance of the data structure defined by a class. You define a class once and then make many objects that belong to it. Objects are also known as instance.
Inheritance − When a class is defined by inheriting existing function of a parent class then it is called inheritance. Here child class will inherit all or few member functions and variables of a parent class.
Polymorphism − This is an object oriented concept where same function can be used for different purposes. For example function name will remain same but it make take different number of arguments and can do different task.
Overloading − a type of polymorphism in which some or all of operators have different implementations depending on the types of their arguments. Similarly functions can also be overloaded with different implementation.
Data Abstraction − Any representation of data in which the implementation details are hidden (abstracted). * Encapsulation − refers to a concept where we encapsulate all the data and member functions together to form an object.
Constructor − refers to a special type of function which will be called automatically whenever there is an object formation from a class.
Destructor − refers to a special type of function which will be called automatically whenever an object is deleted or goes out of scope.
This self-paced course is the continuation of our previous (Introduction to PHP programming) course. This course is a must for anyone interested in doing professional web development with PHP.
Topics and Subtopics
Here is the course outline:
1- Create PHP Pages and a PHP class
2- Add data, function/methods to your class
3- Getter and setter functions
4- The '$this' variable
5- Include your class in your main PHP page
6- Instantiate/create your object
7- The 'new' keyword
8- Set an objects properties
9- Accessing an object's data
10- Directly accessing properties
12- Create an object with a constructor
13- Restricting access to properties using 'access modifiers'
14- Restricting access to methods
15- Reusing code the OOP way: inheritance
16- Overriding methods
Good knowledge of PHP programming.
Complete Training Bundle
Private Tutoring Classes
To take skills you learn from this course to the next level, taking the following tutoring classes are highly recommended. It is also a great opportunity to discuss your questions and problems related to this course with an experienced instructor:
What Is Next?
After finishing this course, you can enroll in any of following classes:
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If you are new to the IT or programming, we suggest the following free courses: