Class declaration syntax in PHP - Mini Project: Build & Apply

Class declaration syntax

📖 Scenario: You are creating a simple program to represent a car using a class in PHP. This will help you understand how to declare a class and create an object.

🎯 Goal: Build a PHP class called Car with a property and a method, then create an object and display its property.

📋 What You'll Learn

Declare a class named Car

Add a public property called color with the value red

Add a public method called getColor that returns the color property

Create an object of the Car class named myCar

Print the color of myCar using the getColor method

💡 Why This Matters

🌍 Real World

Classes help organize data and behavior together, like representing real things such as cars, users, or products in a program.

💼 Career

Understanding class declaration is essential for PHP developers to build organized, reusable, and maintainable code in web applications.

1

Declare the Car class with a color property

Write a PHP class declaration named Car with a public property called color set to the string "red".

PHP

<?php

// Declare class Car with public property color set to "red"

Need a hint?

Use the class keyword followed by the class name Car. Inside, declare a public property $color and set it to "red".

2

Add a getColor method to the Car class

Inside the Car class, add a public method called getColor that returns the value of the color property.

PHP

color
}

Need a hint?

Define a public function named getColor inside the class. Use return $this->color; to return the property.

3

Create an object myCar of the Car class

After the Car class, create a new object named myCar using the new Car() syntax.

PHP

color;
    }
}

// Create an object myCar of class Car

Need a hint?

Use $myCar = new Car(); to create an object from the class.

4

Print the color of myCar using getColor

Write a print statement that outputs the color of myCar by calling its getColor() method.

PHP

color;
    }
}

$myCar = new Car();

// Print the color of myCar using getColor()

Need a hint?

Use print($myCar->getColor()); to show the color.