Objects of a superclass should be replaceable with objects of its subclasses without breaking the application.
For an even more intensive deep dive into OOP, consider the archived "Object-Oriented Bootcamp in PHP" series. While the 2024 edition is the recommended path, the bootcamp is a valuable supplement for those who want extra practice and a different perspective on the same core concepts.
Are you trying to refactor an or start a fresh Laravel project ? Which PHP version are you targeting?
define a contract for what a class should do, but not how it does it.
class BankAccount private float $balance = 0.0; public function deposit(float $amount): void if ($amount > 0) $this->balance += $amount; public function getBalance(): float return $this->balance; Use code with caution. object-oriented principles in php laracasts download
In PHP, encapsulation can be achieved using access modifiers (public, private, protected). Here's an example:
Laravel is built entirely on these OOP principles. Mastering them allows you to: Object-Oriented Principles in PHP - Laracasts
Now that we've covered the basics of OOP principles, let's dive into some practical examples in PHP.
Separate classes for ReportData , ReportFormatter , and ReportRepository . O: Open/Closed Principle (OCP) Objects of a superclass should be replaceable with
: This principle focuses on communication by hiding an object's internal state and protecting private implementation details from the outside world.
can provide a mix of implemented methods and blueprint methods.
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: These act as partially defined base templates that subclasses must complete. Are you trying to refactor an or start
: Objects whose equality is determined by their data (like a five-dollar bill) rather than a unique identity.
Object-Oriented Programming is a programming paradigm that revolves around the concept of objects and classes. It's based on the idea of bundling data and its associated methods that operate on that data within a single unit, making it easier to write reusable and maintainable code.
Encapsulation is the practice of bundling data (properties) and methods (functions) into a single unit (a class) and restricting direct access to some of an object's components.
: Hiding internal data to protect object state.
