What are some tips for effectively utilizing object-oriented programming in PHP for large projects?

Issue: When working on large projects in PHP, it is essential to effectively utilize object-oriented programming principles to maintain code organization, reusability, and scalability. Code snippet:

// Define a class for a specific functionality
class User {
    private $name;
    private $email;
    
    public function __construct($name, $email) {
        $this->name = $name;
        $this->email = $email;
    }
    
    public function getName() {
        return $this->name;
    }
    
    public function getEmail() {
        return $this->email;
    }
}

// Create an instance of the User class
$user = new User("John Doe", "john.doe@example.com");

// Access the properties and methods of the User class
echo $user->getName(); // Output: John Doe
echo $user->getEmail(); // Output: john.doe@example.com