Dynamically check if an enum is defined in PHP

Sometimes you make a mess, and you somehow end up in a situation where you have to dynamically check if an enum exists. Don't worry about it, it happens to the best of us. To dynamically check if an enum is defined, you can pass the FQN of an enum into the defined() function:

if (defined('App\Support\Enums\UserRole::'.$role)) {
    // true if this enum case exists
}

If you want to get the value of a PHP enum dynamically, you can use the constant() function:

$enum = constant('App\Support\Enums\UserRole::'.$role);