BackedEnum::from

BackedEnum::from

Maps a scalar to an enum instance

static **BackedEnum::from**  $value

The method translates a or into the corresponding Enum case, if any. If there is no matching case defined, it will throw a . from``string``int``ValueError

valueThe scalar value to map to an enum case.

A case instance of this enumeration.

Voorbeeld: Basic usage

The following example illustrates how enum cases are returned.

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

$h = Suit::from('H');

var_dump($h);

$b = Suit::from('B');
?>

enum(Suit::Hearts)

Fatal error: Uncaught ValueError: "B" is not a valid backing value for enum "Suit" in /file.php:15

UnitEnum::cases``BackedEnum::tryFrom