PHP Class Constants - Public, Private or Protected?

Question

Am I correct in assuming that const properties are automatically public? Is there a way to make them private or protected?

Thanks in advance.

Answer 1

I am aware this question is 6 years old

Php 7.1 (currently RC1) allows to specify visibility on class constants.

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;

        //Constants can only have one visibility declaration list
        private const FOO = 1, BAR = 2;
}

Additional info

• RFC on class const visibility
• Blog post on Class Constant Visibility