ReflectionEnum::getBackingType

(PHP 8 >= 8.1.0)

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

Descrizione

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.

Elenco dei parametri

Questa funzione non contiene parametri.

Valori restituiti

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

Log delle modifiche

Versione Descrizione
8.2.0 The return type is now declared as ?ReflectionNamedType. Previously, ?ReflectionType was declared.

Esempi

Example #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);
?>

Il precedente esempio visualizzerĂ :

string(6) "string"

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