Books.php

<?php
class Books{
  public function name(){
  echo “Drupal book”;
  }
  public function price(){
  echo “900 Rs/-”;
  }
}
To create php object we have to use a  new operator. Here php object is the object of the Books Class. 
$obj = new Books();
$obj->name();
$obj->price();
?>

Line 10 should have a comment modifier since it will create errors.

<?php
class Books{
    public function name(){
        echo “Drupal book”;
    }
    public function price(){
        echo “900 Rs/-”;
    }
}
// To create php object we have to use a  new operator. Here php object is the object of the Books Class. 
$obj = new Books();
$obj->name();
$obj->price();
?>