ReflectionEnum::getBackingType

(PHP 8 >= 8.1.0)

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

Descrição

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.

Parâmetros

Esta função não possui parâmetros.

Valor Retornado

An instance of ReflectionNamedType, or null if the Enum has no backing type.

Registro de Alterações

Versão Descrição
8.2.0 The return type is now declared as ?ReflectionNamedType. Previously, ?ReflectionType was declared.

Exemplos

Exemplo #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);
?>

O exemplo acima produzirá:

string(6) "string"

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