<?php
    // Enum for Type of the user subscription
    abstract class TypeOfSubscription {
        const FREE = "free";
        const BASIC = "basic";
        const PREMIUM = "premium";
        const PROFESSIONAL = "professional";
    }

    // Enum for Type of the user
    abstract class TypeOfUser {
        const ADMIN = 1;
        const SUPER_ADMIN = 2;
        const CLIENT_USER = 3;
        const CLIENT_ORGANIZATION = 4;
        const REVIEWER = 5;
    }
?>