ReflectionEnum::getBackingType

(PHP 8 >= 8.1.0)

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

Description

public ReflectionEnum::getBackingType(): ?ReflectionType

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.

Parameters

This function has no parameters.

Return Values

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

Examples

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);
?>

The above example will output:

string(6) "string"

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