Introduction to object-oriented programming (OOP) concepts in PHP Mocktest

Multiple inheritance is an OOP concept where a class can inherit properties and methods from more than one superclass. However, PHP does not support multiple inheritance directly.

The __destruct() method in PHP is automatically called when an object is destroyed or goes out of scope. It is used to perform any cleanup tasks or release resources associated with the object.

Properties or methods declared as private in PHP are accessible only within the class where they are defined. They cannot be accessed from outside the class or its subclasses.

The $this keyword in PHP is used to access properties or methods within the same class. It refers to the current object instance.

The final keyword in PHP is used to prevent a class from being inherited. When a class is marked as final, it cannot be subclassed or extended.

The parent:: keyword in PHP is used to call methods of the parent class from within a subclass. It allows access to methods defined in the parent class that have been overridden in the subclass.

Overloading in OOP refers to the ability to define multiple methods with the same name but different parameters or different numbers of parameters. PHP does not support method overloading directly.

The static keyword in PHP is used to declare properties or methods as static. Static properties and methods can be accessed directly without instantiating the class.

The __get() magic method in PHP is called when an undefined property is accessed (read) from outside the class. It allows for custom behavior when accessing inaccessible or undefined properties.

The interface keyword in PHP is used to define an interface, which defines a contract for classes to implement. It specifies a set of methods that implementing classes must define.