<?php
class Token {
    // Constants default to public
    const PUBLIC_CONST = 0;

    // Constants then also can have a defined visibility
    private const PRIVATE_CONST = 0;
    protected const PROTECTED_CONST = 0;
    public const PUBLIC_CONST_TWO = 0;

    // Both FOO and BAR are "private const"
    private const FOO = 1, BAR = 2;
}
?>