In what scenarios would it be advisable to create a derived class to abstract access to class constants, rather than accessing them directly?

Creating a derived class to abstract access to class constants can be useful when you want to encapsulate the constants and provide a more organized and structured way to access them. This approach can also help in maintaining code readability and reusability by centralizing the constant values in one place. Additionally, using a derived class can provide a layer of abstraction that allows for easier modification or extension of the constants in the future.

<?php

class Constants {
    const VALUE_1 = 1;
    const VALUE_2 = 2;
}

class ConstantsAccessor extends Constants {
    public static function getValue1() {
        return parent::VALUE_1;
    }

    public static function getValue2() {
        return parent::VALUE_2;
    }
}

// Accessing constants using the derived class
echo ConstantsAccessor::getValue1(); // Output: 1
echo ConstantsAccessor::getValue2(); // Output: 2