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PHP - Manual: ReflectionEnumBackedCase::getBackingValue - 互联网笔记

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PHP - Manual: ReflectionEnumBackedCase::getBackingValue

2025-04-28

ReflectionEnumBackedCase::getBackingValue

(PHP 8 >= 8.1.0)

ReflectionEnumBackedCase::getBackingValue获取枚举条目回退的标量值

说明

public ReflectionEnumBackedCase::getBackingValue(): int|string

获取枚举条目回退的标量值。

参数

此函数没有参数。

返回值

枚举条目对应的标量值。

示例

示例 #1 ReflectionEnum::getBackingValue() 示例

<?php
enum Suit: string
{
case
Hearts = 'H';
case
Diamonds = 'D';
case
Clubs = 'C';
case
Spades = 'S';
}

$rEnum = new ReflectionEnum(Suit::class);

$rCase = $rEnum->getCase('Spades');

var_dump($rCase->getBackingValue());
?>

以上示例会输出:

string(1) "S"

参见

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官方地址:https://www.php.net/manual/en/reflectionenumbackedcase.getbackingvalue.php

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