What are some best practices for handling scope and visibility in PHP classes?

When working with PHP classes, it is important to carefully manage the scope and visibility of properties and methods. This helps maintain encapsulation and prevent unintended access or modification of class members. To handle scope and visibility effectively, use the public, protected, and private keywords to control access to class members.

class MyClass {
    public $publicProperty;
    protected $protectedProperty;
    private $privateProperty;

    public function publicMethod() {
        // code here
    }

    protected function protectedMethod() {
        // code here
    }

    private function privateMethod() {
        // code here
    }
}