(PHP 8 >= 8.1.0)
ReflectionEnum::getBackingType — Gets the backing type of an Enum, if any
If the enumeration is a Backed Enum, this method will return an instance
of ReflectionType for the backing type of the Enum.
If it is not a Backed Enum, it will return null
.
This function has no parameters.
An instance of ReflectionNamedType, or null
if the Enum has no backing type.
Version | Description |
---|---|
8.2.0 |
The return type is now declared as ?ReflectionNamedType . Previously,
?ReflectionType was declared.
|
Example #1 ReflectionEnum::getBackingType() example
<?phpenum Suit: string{ case Hearts = 'H'; case Diamonds = 'D'; case Clubs = 'C'; case Spades = 'S';}$rEnum = new ReflectionEnum(Suit::class);$rBackingType = $rEnum->getBackingType();var_dump((string)$rBackingType);?>
The above example will output:
string(6) "string"