PHP - print namespace constant within a string?

Question

I have the following test code:

namespace Test {
    const ONE = 50;

    class A {
        const TWO = 5;

        public function pA($string) {
            return $string;
        }
    }

    $a = new A();
    print $a->pA($a::TWO);
    print "This is a string: {$a->pA($a::TWO)}";
    print "This is a namespace constant: " . ONE;
    print "This is a namespace constant: " . \Test\ONE;
}

All of these examples work, but it's not what I'm looking for.

Can I use string composition to represent the constant like in the first two examples? I've tried many combinations like "${\Test\B}" or "${B}" or "${\B}" but, so far, no luck.

Maybe it isn't possible and I'm overdoing it, but anyway... is there a way to do that?

Answer 1

This will not work. You can use $variables, functions or object method calls in double quoted string but not constants. Refer to the PHP string parsing documentation. You'll find many useful examples.