How to cast FQCN enum case into enum instance in PHP?

Question

I have the following code:

enum Suit: string
{
 case Hearts = 'H';
 case Diamonds = 'D';
 case Clubs = 'C';
 case Spades = 'S';
}
$enumClass = '\Suit';
$hearts = $enumClass::from('\Suit::Hearts');
var_dump($hearts);

Which results in

PHP Fatal error: Uncaught ValueError: "\Suit::Hearts" is not a valid backing value for enum "Suit"

How can I cast human-readable enum strings such as EnumName::enumCase into BackedEnum?

Is there some way to call some get_enum_from_fqcn('\Namespace\Some\Enum::EnumCase') ?

Answer 1

Just in case someone still needs an answer with this. The value that is supposed to go in from is 'H'

$hearts = Suit::from('H');

If you want it based on the name you could use https://github.com/henzeb/enumhancer, as it allows you to do just that.

enum Suit: string
{
 use EnumHancer;
 case Hearts = 'H';
 case Diamonds = 'D';
 case Clubs = 'C';
 case Spades = 'S';
}

And then you can just do:

Suite::make('Hearts');

This will also be helpful with UnitEnums, as you won't be needing values to do it.