Get value of dynamically chosen class constant in PHP

Question

I would like to be able to do something like this:

class ThingIDs
{
    const Something = 1;
    const AnotherThing = 2;
}

$thing = \'Something\';
$id = Thi         


        

Answer 1

$id = constant("ThingIDs::$thing");

http://php.net/manual/en/function.constant.php

Answer 2

If you are using namespaces, you should include the namespace with the class.

echo constant('My\Application\ThingClass::ThingConstant');