Learn PHP from the Best Tutors
Affordable fees 1-1 or Group class Flexible Timings Verified Tutors Search in
Asked by Laxmi Last Modified
Answer In PHP, an abstract class is a class that cannot be instantiated on its own and is meant to be subclassed by other classes. It serves as a blueprint for other classes, defining common properties and methods that should be shared by its subclasses. Abstract classes are useful when you want to provide a common structure for a group of related classes but don't want instances of the abstract class itself.
Here are key concepts and use cases to help you understand the use of abstract classes in PHP:
abstract class Animal { // Abstract method (to be implemented by subclasses) abstract public function makeSound(); // Regular method (can have an implementation) public function sleep() { echo "Zzz..."; } } abstract keyword and do not contain a method body.class Dog extends Animal { // Implementation of the abstract method public function makeSound() { echo "Woof!"; } // Additional methods specific to the Dog class public function fetch() { echo "Fetching the ball..."; } } // You cannot create an instance of an abstract class // $animal = new Animal(); // This will result in an error // Instantiate a subclass $dog = new Dog(); // Call methods from the abstract class $dog->sleep(); // Output: Zzz... // Call the abstract method implemented in the subclass $dog->makeSound(); // Output: Woof! // Call additional methods specific to the subclass $dog->fetch(); // Output: Fetching the ball... Common Interface:
Code Reusability:
Enforcement of Method Implementation:
Flexibility and Extensibility:
Partial Implementation:
Remember that abstract classes can't be instantiated, and any class containing at least one abstract method must also be declared as abstract. Understanding the use of abstract classes becomes particularly valuable when dealing with complex class hierarchies and when you want to establish a common structure among related classes in your PHP application.
Related Questions
I am working as a senior PHP Developer with more than 8 years of experience. I am familiar with almost all major PHP and CMS and frameworks. But I am getting way less package than the market standards for my experience? What would be the best technology/domain for me if I want to make a shift in my career with good salary?
Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com
Ask a QuestionRelated Lessons
Recommended Articles
Make a Career in Mobile Application Programming
Almost all of us, inside the pocket, bag or on the table have a mobile phone, out of which 90% of us have a smartphone. The technology is advancing rapidly. When it comes to mobile phones, people today want much more than just making phone calls and playing games on the go. People now want instant access to all their business...
Read full article >
Make a Career as a BPO Professional
Business Process outsourcing (BPO) services can be considered as a kind of outsourcing which involves subletting of specific functions associated with any business to a third party service provider. BPO is usually administered as a cost-saving procedure for functions which an organization needs but does not rely upon to...
Read full article >
Learn Microsoft Excel
Microsoft Excel is an electronic spreadsheet tool which is commonly used for financial and statistical data processing. It has been developed by Microsoft and forms a major component of the widely used Microsoft Office. From individual users to the top IT companies, Excel is used worldwide. Excel is one of the most important...
Read full article >
Top 5 Skills Every Software Developer Must have
Software Development has been one of the most popular career trends since years. The reason behind this is the fact that software are being used almost everywhere today. In all of our lives, from the morning’s alarm clock to the coffee maker, car, mobile phone, computer, ATM and in almost everything we use in our daily...
Read full article >
Looking for PHP Classes?
Learn from the Best Tutors on UrbanPro
Are you a Tutor or Training Institute?
Join UrbanPro Today to find students near youThe best tutors for PHP Classes are on UrbanPro
The best Tutors for PHP Classes are on UrbanPro
28
