Member Function

Question 1

What is a member function in PHP?

Answer 1

A member function is a function defined within a class that operates on the properties of that class.

Question 2

Provide an example of a class with a member function in PHP.

Answer 2

class Car {
public $color; // Property of the class
public function construct($color) { // Constructor to initialize the color
$this->color = $color; // Assign the color value to the property
}
public function displayColor() { // Member function to display the color
echo “The color of the car is: “ . $this->color; // Access the property using $this
} }

Question 3

How do you create an object of a class in PHP?

Answer 3

$myCar = new Car(“red”); // Create an instance of the Car class with color ‘red’

Question 4

How do you call a member function on an object in PHP?

Answer 4

$myCar->displayColor(); // Call the displayColor member function on the $myCar object
// Outputs: The color of the car is: red

Question 5

What are the key points about member functions in PHP?

Answer 5

Member functions are defined within a class.
They can access class properties using $this.
They are called on objects created from the class.
They encapsulate behavior related to the class’s data.