BackedEnum::from

(PHP 8 >= 8.1.0)

BackedEnum::fromMaps a scalar to an enum instance

Description

public static BackedEnum::from(int|string $value): static

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

Parameters

value

The scalar value to map to an enum case.

Return Values

A case instance of this enumeration.

Examples

Example #1 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');
?>

The above example will output:

enum(Suit::Hearts)

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

See Also

Here you can write a comment


Please enter at least 10 characters.
Loading... Please wait.
* Pflichtangabe
There are no comments available yet.

PHP cURL Tutorial: Using cURL to Make HTTP Requests

cURL is a powerful PHP extension that allows you to communicate with different servers using various protocols, including HTTP, HTTPS, FTP, and more. ...

TheMax

Autor : TheMax
Category: PHP-Tutorials

Midjourney Tutorial - Instructions for beginners

There is an informative video about Midjourney, the tool for creating digital images using artificial intelligence, entitled "Midjourney tutorial in German - instructions for beginners" ...

Mike94

Autor : Mike94
Category: KI Tutorials

Basics of views in MySQL

Views in a MySQL database offer the option of creating a virtual table based on the result of an SQL query. This virtual table can be queried like a normal table without changing the underlying data. ...

admin

Autor : admin
Category: mySQL-Tutorials

Publish a tutorial

Share your knowledge with other developers worldwide

Share your knowledge with other developers worldwide

You are a professional in your field and want to share your knowledge, then sign up now and share it with our PHP community

learn more

Publish a tutorial