Object instantiation with new in PHP - Mini Project: Build & Apply

Object Instantiation with new in PHP

📖 Scenario: You are creating a simple program to manage a library's book information. Each book has a title and an author.

🎯 Goal: Build a PHP program that defines a Book class, creates an object of this class using new, and displays the book's details.

📋 What You'll Learn

Define a class named Book with two public properties: title and author.

Create an object of the Book class using the new keyword.

Assign values to the title and author properties of the object.

Print the book's title and author in the format: Title: [title], Author: [author].

💡 Why This Matters

🌍 Real World

Creating and managing objects is a basic skill in PHP used in web applications to represent real-world things like users, products, or books.

💼 Career

Understanding object instantiation is essential for PHP developers working on object-oriented projects, frameworks, and CMS platforms.

1

Define the Book class

Define a class called Book with two public properties: title and author.

PHP

<?php

// Define the Book class with public properties title and author
// Your code here

Need a hint?

Use class Book { public string $title; public string $author; } to define the class.

2

Create a Book object

Create an object called myBook of the Book class using the new keyword.

PHP

<?php

class Book {
    public string $title;
    public string $author;
}

// Create an object myBook of class Book
// Your code here

Need a hint?

Use $myBook = new Book(); to create the object.

3

Assign values to properties

Assign the string "1984" to myBook->title and "George Orwell" to myBook->author.

PHP

title and "George Orwell" to myBook->author
// Your code here

Need a hint?

Use $myBook->title = "1984"; and $myBook->author = "George Orwell";.

4

Print book details

Print the book's title and author using print in the format: Title: 1984, Author: George Orwell.

PHP

title = "1984";
$myBook->author = "George Orwell";

// Print the book details in the format: Title: 1984, Author: George Orwell
// Your code here

Need a hint?

Use print("Title: {$myBook->title}, Author: {$myBook->author}"); to display the details.