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A class is a template for objects, and an object is an instance of class. OOP Case. Let's assume we have a class named Fruit. A Fruit can have properties like name, color, weight, etc. We can define variables like $name, $color, and $weight to hold the values of these properties.
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The "class" keyword is a fundamental building block of object-oriented programming in PHP, allowing you to define classes and create objects based on those classes. In this article, we will explore the syntax and usage of the "class" keyword in depth, and provide plenty of examples to help you master this important PHP feature.
To define a class, you specify the class keyword followed by a name like this: <?php class ClassName { //...} Code language: HTML, XML (xml) For example, the following defines a new class called BankAccount: <?php class BankAccount { } Code language: HTML, XML (xml) By convention, you should follow these rules when defining a class:
Classes can contain properties (variables) and methods (functions). Objects are instances of classes, created using the new keyword. The properties of an object store its data and the methods operate on that data. Classes and objects are the building blocks of OOP in PHP.
An alternative in some scenarios is to use overloading: you start with a generic class, with three __call __get and __set methods implementing dynamically at runtime the class behavior — php.net/manual/en/language.oop5.overloading.php
Classes and objects are the two main aspects of object-oriented programming. A class is a self-contained, independent collection of variables and functions which work together to perform one or more specific tasks, while objects are individual instances of a class.
