ReflectionEnum::getBackingType
(PHP 8 >= 8.1.0)
ReflectionEnum::getBackingType — Gets the backing type of an Enum, if any
Descrizione
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 visualizzerà:
string(6) "string"
add a note
User Contributed Notes
There are no user contributed notes for this page.
