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ReflectionEnum::isBacked

Contents

(PHP 8 >= 8.1.0)

ReflectionEnum::isBacked — Determines if an Enum is a Backed Enum

Description

public ReflectionEnum::isBacked(): bool

A Backed Enum is one that has a native backing scalar equivalent, either a string or an int. Not all Enums are backed.

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Parameters

This function has no parameters.

PHP: ReflectionEnum::isBacked - Manual Home of Manuel PHP  Contents Haut

Return Values

true if the Enum has a backing scalar, false if not.

PHP: ReflectionEnum::isBacked - Manual Home of Manuel PHP  Contents Haut

Examples

Example #1 ReflectionEnum::isBacked() example

<?php
enum Suit
{
case Hearts;
case Diamonds;
case Clubs;
case Spades;
}

enum BackedSuit: string
{
case Hearts = 'H';
case Diamonds = 'D';
case Clubs = 'C';
case Spades = 'S';
}

var_dump((new ReflectionEnum(Suit::class))->isBacked());
var_dump((new ReflectionEnum(BackedSuit::class))->isBacked());
?>

The above example will output:

bool(false)
bool(true)

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