ReflectionEnum::getBackingType

(PHP 8 >= 8.1.0)

ReflectionEnum::getBackingTypeGets the backing type of an Enum, if any

Description

public ReflectionEnum::getBackingType(): ?ReflectionNamedType

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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