Are there any best practices for enforcing access control in PHP classes to prevent unauthorized method calls?

To enforce access control in PHP classes and prevent unauthorized method calls, you can use visibility keywords such as public, protected, and private. By setting methods as private or protected, you restrict access to those methods from outside the class, ensuring that only authorized methods can call them.

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

    protected function protectedMethod() {
        // code here
    }

    public function publicMethod() {
        // code here
    }
}

$instance = new MyClass();
$instance->publicMethod(); // This is allowed
$instance->privateMethod(); // This will result in a fatal error
$instance->protectedMethod(); // This will result in a fatal error