2025

What are the differences between include, require, include_once, and require_once?

August 15, 2025

In PHP, include, require, include_once, and require_once are all used to include and evaluate files, but they behave differently in...

Explain the difference between echo, print, print_r(), and var_dump().

August 15, 2025

In PHP, echo, print, print_r(), and var_dump() are all used to output data, but they serve different purposes and behave...

Explain the Singleton design pattern in PHP.

August 15, 2025

The Singleton Design Pattern in PHP is a creational pattern that ensures: This is useful when you want a single...

How do you implement dependency injection in PHP?

August 15, 2025

Dependency Injection (DI) in PHP is a design pattern where you pass an object’s dependencies from the outside instead of...

What is the difference between get() and set()?

August 15, 2025

In PHP, __get() and __set() are magic methods used for overloading properties — meaning they let you access or assign...

How do traits work in PHP? Why are they needed?

August 15, 2025

In PHP, traits are a mechanism for code reuse that lets you share methods between multiple unrelated classes without using...

What is Final Class and Final Method in php

August 15, 2025

In PHP, final is a keyword used in OOP to prevent further modification of classes or methods. 1. Final Class...

What is method overriding and method overloading in php

August 15, 2025

1. Method Overriding in PHP Definition:When a child class defines a method with the same name, parameters, and return type...

What is the difference between self and $this?

August 15, 2025

In PHP OOP, self and $this are both used inside a class, but they work in very different ways: 1....

What is $this keyword used for in PHP?

August 15, 2025

In PHP, the $this keyword is used inside a class to refer to the current object instance of that class....