ReflectionEnum::getBackingType
(PHP 8 >= 8.1.0)
ReflectionEnum::getBackingType — Gets the backing type of an Enum, if any
Description
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.
Liste de paramètres
Cette fonction ne contient aucun paramètre.
Valeurs de retour
An instance of ReflectionNamedType, or null
if the Enum has no backing type.
Historique
| Version | Description |
|---|---|
| 8.2.0 |
The return type is now declared as ?ReflectionNamedType. Previously,
?ReflectionType was declared.
|
Exemples
Exemple #1 ReflectionEnum::getBackingType() example
<?php
enum 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);
?>L'exemple ci-dessus va afficher :
string(6) "string"
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